Section 2 IT Act: Definitions

Information Technology Act, 2000

Section 2 IT Act at a Glance

Section 2 IT Act defines the technical, legal, and administrative terms used across the Information Technology Act, 2000, unless the context requires otherwise. Covered terms include computer, computer resource, electronic record, electronic signature, intermediary, and cyber security.

Section 2 IT Act Bare Act Text

2. Definitions.

(1) In this Act, unless the context otherwise requires,—

(a) “access” with its grammatical variations and cognate expressions means gaining entry into, instructing or communicating with the logical, arithmetical, or memory function resources of a computer, computer system or computer network;

(b) “addressee” means a person who is intended by the originator to receive the electronic record but does not include any intermediary;

(c) “adjudicating officer” means an adjudicating officer appointed under sub-section (1) of section 46;

(d) “affixing electronic signature” with its grammatical variations and cognate expressions means adoption of any methodology or procedure by a person for the purpose of authenticating an electronic record by means of electronic signature;

(da) “Appellate Tribunal” means the Appellate Tribunal referred to in sub-section (1) of section 48;

(e) “appropriate Government” means as respects any matter,—

(i) enumerated in List II of the Seventh Schedule to the Constitution;

(ii) relating to any State law enacted under List III of the Seventh Schedule to the Constitution,

the State Government and in any other case, the Central Government;

(f) “asymmetric crypto system” means a system of a secure key pair consisting of a private key for creating a digital signature and a public key to verify the digital signature;

(g) “Certifying Authority” means a person who has been granted a licence to issue a electronic signature Certificate under section 24;

(h) “certification practice statement” means a statement issued by a Certifying Authority to specify the practices that the Certifying Authority employs in issuing electronic signature Certificates;

(ha) “communication device” means cell phones, personal digital assistance or combination of both or any other device used to communicate, send or transmit any text, video, audio or image;

(i) “computer” means any electronic, magnetic, optical or other high-speed data processing device or system which performs logical, arithmetic, and memory functions by manipulations of electronic, magnetic or optical impulses, and includes all input, output, processing, storage, computer software or communication facilities which are connected or related to the computer in a computer system or computer network;

(j) “computer network” means the inter-connection of one or more computers or computer systems or communication device through—

(i) the use of satellite, microwave, terrestrial line, wire, wireless or other communication media; and

(ii) terminals or a complex consisting of two or more interconnected computers or communication device whether or not the inter-connection is continuously maintained;

(k) “computer resource” means computer, computer system, computer network, data, computer data base or software;

(l) “computer system” means a device or collection of devices, including input and output support devices and excluding calculators which are not programmable and capable of being used in conjunction with external files, which contain computer programmes, electronic instructions, input data and output data, that performs logic, arithmetic, data storage and retrieval, communication control and other functions;

(m) “Controller” means the Controller of Certifying Authorities appointed under sub-section (1) of section 17;

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(na) “cyber cafe” means any facility from where access to the internet is offered by any person in the ordinary course of business to the members of the public;

(nb) “cyber security means protecting information, equipment, devices, computer, computer resource, communication device and information stored therein from unauthorised access, use, disclosure, disruption, modification or destruction;

(o) “data” means a representation of information, knowledge, facts, concepts or instructions which are being prepared or have been prepared in a formalised manner, and is intended to be processed, is being processed or has been processed in a computer system or computer network, and may be in any form (including computer printouts magnetic or optical storage media, punched cards, punched tapes) or stored internally in the memory of the computer;

(p) “digital signature” means authentication of any electronic record by a subscriber by means of an electronic method or procedure in accordance with the provisions of section 3;

(q) “Digital Signature Certificate” means a Digital Signature Certificate issued under sub-section (4) of section 35;

(r) “electronic form” with reference to information, means any information generated, sent, received or stored in media, magnetic, optical, computer memory, micro film, computer generated micro fiche or similar device;

(s) “Electronic Gazette” means the Official Gazette published in the electronic form;

(t) “electronic record” means data, record or data generated, image or sound stored, received or sent in an electronic form or micro film or computer generated micro fiche;

(ta) “electronic signature” means authentication of any electronic record by a subscriber by means of the electronic technique specified in the Second Schedule and includes digital signature;

(tb) “Electronic Signature Certificate” means an Electronic Signature Certificate issued under section 35 and includes Digital Signature Certificate;

(u) “function”, in relation to a computer, includes logic, control, arithmetical process, deletion, storage and retrieval and communication or telecommunication from or within a computer;

(ua) Indian Computer Emergency Response Team” means an agency established under subsection (1) of Section 70B;

(v) “information” includes data, message, text, images, sound, voice, codes, computer programmes, software and data bases or micro film or computer generated micro fiche;

(w) “intermediary”, with respect to any particular electronic records, means any person who on behalf of another person receives, stores or transmits that record or provides any service with respect to that record and includes telecom service providers, network service providers, internet service providers, web-hosting service providers, search engines, online payment sites, online-auction sites, online-market places and cyber cafes;

(x) “key pair”, in an asymmetric crypto system, means a private key and its mathematically related public key, which are so related that the public key can verify a digital signature created by the private key;

(y) “law” includes any Act of Parliament or of a State Legislature, Ordinances promulgated by the President or a Governor, as the case may be, Regulations made by the President under article 240, Bills enacted as President's Act under sub-clause (a) of clause (1) of article 357 of the Constitution and includes rules, regulations, bye-laws and orders issued or made thereunder;

(z) “licence” means a licence granted to a Certifying Authority under section 24;

(za) “originator” means a person who sends, generates, stores or transmits any electronic message or causes any electronic message to be sent, generated, stored or transmitted to any other person but does not include an intermediary;

(zb) “prescribed” means prescribed by rules made under this Act;

(zc) “private key” means the key of a key pair used to create a digital signature;

(zd) “public key” means the key of a key pair used to verify a digital signature and listed in the Digital Signature Certificate;

(ze) “secure system” means computer hardware, software, and procedure that—

(a) are reasonably secure from unauthorised access and misuse;

(b) provide a reasonable level of reliability and correct operation;

(c) are reasonably suited to performing the intended functions; and

(d) adhere to generally accepted security procedures;

(zf) “security procedure” means the security procedure prescribed under section 16 by the Central Government;

(zg) “subscriber” means a person in whose name the electronic signature Certificate is issued;

(zh) “verify”, in relation to a digital signature, electronic record or public key, with its grammatical variations and cognate expressions, means to determine whether—

(a) the initial electronic record was affixed with the digital signature by the use of private key corresponding to the public key of the subscriber;

(b) the initial electronic record is retained intact or has been altered since such electronic record was so affixed with the digital signature.

(2) Any reference in this Act to any enactment or any provision thereof shall, in relation to an area in which such enactment or such provision is not in force, be construed as a reference to the corresponding law or the relevant provision of the corresponding law, if any, in force in that area.

Amendments to this section
  • Subs. by Act 10 of 2009, s. 2, for "digital signature" (w.e.f. 27-10-2009).
  • Ins. by Act 7 of 2017, s. 169 (w.e.f. 26-5-2017).
  • Ins. by Act 10 of 2009, s. 4 (w.e.f. 27-10-2009).
  • Subs. by s. 4, ibid., for clause (j) (w.e.f. 27-10-2009).
  • Clause (n) omitted by Act 7 of 2017, s.169 (w.e.f. 26-5-2017).
  • Subs. by s. 4, ibid., for "data, text" (w.e.f. 27-10-2009).
  • Subs. by s. 4, ibid., for clause (w) (w.e.f. 27-10-2009).

Section 2 IT Act in Simple Words

Section 2 IT Act sets out the definitions that apply across the Information Technology Act, 2000, unless the context of a provision requires a different meaning. Under Section 2(1) IT Act, "access" in clause (a) means gaining entry into, instructing, or communicating with the logical, arithmetical, or memory function resources of a computer, computer system, or computer network. An "addressee" in clause (b) is the person whom the originator intends to receive an electronic record, excluding any intermediary. Clause (c) defines an "adjudicating officer" as an officer appointed under Section 46(1) IT Act, and clause (d) defines "affixing electronic signature" as adopting any methodology or procedure to authenticate an electronic record by an electronic signature. Under clause (da), "Appellate Tribunal" refers to the tribunal in Section 48(1) IT Act. Clause (e) defines "appropriate Government" as the State Government for matters in List II of the Seventh Schedule to the Constitution or relating to a State law enacted under List III, and the Central Government in any other case. Clause (f) defines an "asymmetric crypto system" as a secure key-pair system with a private key to create a digital signature and a public key to verify that signature, while clauses (g) and (h) define a "Certifying Authority" licensed under Section 24 IT Act to issue Electronic Signature Certificates and its "certification practice statement" specifying the practices used in issuing those certificates.

Clause (ha) of Section 2(1) IT Act defines a "communication device" as cell phones, handheld personal digital assistants, a combination of both, or any other device used to communicate, send, or transmit text, video, audio, or images. Under clause (i), a "computer" is any electronic, magnetic, optical, or other high-speed data-processing device or system performing logical, arithmetic, and memory functions by manipulating electronic, magnetic, or optical impulses, including connected or related input, output, processing, storage, software, or communication facilities in a computer system or network. Clause (j) defines a "computer network" as the interconnection of one or more computers, computer systems, or communication devices through satellite, microwave, terrestrial line, wire, wireless, or other communication media, and terminals or a complex of two or more interconnected computers or communication devices, whether or not the interconnection stays continuous. Under clause (k), a "computer resource" means a computer, computer system, computer network, data, computer database, or software. Clause (l) defines a "computer system" as a device or collection of devices (including input and output support devices, and excluding calculators that are not programmable and capable of being used in conjunction with external files) containing computer programmes, electronic instructions, input data, and output data, performing logic, arithmetic, data storage and retrieval, communication control, and other functions. Clause (m) defines "Controller" as the Controller of Certifying Authorities appointed under Section 17(1) IT Act, and clause (n) stands omitted. Clause (na) defines a "cyber cafe" as any facility offering internet access to members of the public in the ordinary course of business, clause (nb) defines "cyber security" as protecting information, equipment, devices, computers, computer resources, communication devices, and stored information from unauthorised access, use, disclosure, disruption, modification, or destruction, and clause (o) defines "data" as a formalised representation of information, knowledge, facts, concepts, or instructions prepared or being prepared for processing, or processed, in a computer system or network, in any form (including printouts, magnetic or optical storage media, punched cards, or punched tapes) or stored in computer memory.

Moving to electronic records and authentication in Section 2(1) IT Act, clause (p) defines a "digital signature" as authentication of an electronic record by a subscriber through an electronic method or procedure in accordance with Section 3 IT Act, and clause (q) defines a "Digital Signature Certificate" as one issued under Section 35(4) IT Act. Clause (r) defines "electronic form" for information as information generated, sent, received, or stored in media, magnetic or optical storage, computer memory, microfilm, computer-generated microfiche, or a similar device. Under clause (s), "Electronic Gazette" means the Official Gazette published in electronic form, and under clause (t), an "electronic record" means data, a record, or generated data, or an image or sound stored, received, or sent in electronic form, microfilm, or computer-generated microfiche. Clause (ta) defines an "electronic signature" as authentication of an electronic record by a subscriber using an electronic technique specified in the Second Schedule and includes a digital signature, while clause (tb) defines an "Electronic Signature Certificate" issued under Section 35 IT Act to include a Digital Signature Certificate. Clause (u) states that computer "function" includes logic, control, arithmetical process, deletion, storage and retrieval, and communication or telecommunication from or within a computer. Clause (ua) defines the "Indian Computer Emergency Response Team" as the agency established under Section 70B(1) IT Act. Clause (v) states that "information" includes data, message, text, images, sound, voice, codes, computer programmes, software, databases, microfilm, or computer-generated microfiche. Clause (w) defines an "intermediary" for any particular electronic records as any person who on behalf of another person receives, stores, or transmits that record or provides any service for that record, including telecom, network, internet, and web-hosting service providers, search engines, online payment sites, online auction sites, online marketplaces, and cyber cafes.

In the remaining clauses of Section 2(1) IT Act, clause (x) defines a "key pair" in an asymmetric crypto system as a private key and its mathematically related public key, related so that the public key can verify a digital signature created by the private key. Clause (y) states that "law" includes Acts of Parliament or State Legislatures, Ordinances promulgated by the President or a Governor, Presidential Regulations under Article 240 of the Constitution, Bills enacted as a President's Act under Article 357(1)(a) of the Constitution, and rules, regulations, bye-laws, and orders made under them. Clause (z) defines a "licence" as one granted to a Certifying Authority under Section 24 IT Act. Under clause (za), an "originator" is a person who sends, generates, stores, or transmits an electronic message, or causes that message to be sent, generated, stored, or transmitted to another person, excluding an intermediary. Clause (zb) defines "prescribed" as prescribed by rules made under the IT Act. Clauses (zc) and (zd) define the "private key" used to create a digital signature and the "public key" used to verify a digital signature and listed in the Digital Signature Certificate. Under clause (ze), a "secure system" means computer hardware, software, and procedures that are reasonably secure from unauthorised access and misuse, provide a reasonable level of reliability and correct operation, are reasonably suited to performing their intended functions, and adhere to widely accepted security procedures. Clause (zf) defines "security procedure" as the procedure prescribed by the Central Government under Section 16 IT Act, clause (zg) defines a "subscriber" as the person in whose name an Electronic Signature Certificate is issued, and clause (zh) defines "verify" as determining whether the initial electronic record was affixed with the digital signature using the private key corresponding to the subscriber's public key and whether that initial record remains intact or has been altered since affixing.

Section 2(2) IT Act adds an interpretation rule for territorial coverage: any reference in the IT Act to an enactment or a provision of an enactment is, for an area where that enactment or provision is not in force, construed as a reference to the corresponding law or relevant provision, if any, in force in that area. Across the statute, the terms defined in Section 2 IT Act supply the core meanings applied in provisions such as Section 43 IT Act (acts done to a computer without the owner's permission creating liability to pay compensation) and Section 66 IT Act (doing any of those acts dishonestly or fraudulently as an offence). The Information Technology (Amendment) Act, 2008 (Act 10 of 2009) inserted or substituted several clauses, including clause (j), with effect from 27 October 2009. The Finance Act, 2017 (Act 7 of 2017) inserted clause (da) and omitted clause (n), which had defined the Cyber Appellate Tribunal, with effect from 26 May 2017.

When Section 2 IT Act Applies

  • Context-override rule (Section 2(1) IT Act): every definition in Section 2(1) IT Act applies across the Act unless the context of a provision otherwise requires.
  • Intermediary test (Section 2(1)(w), (b), and (za) IT Act): a person is an intermediary for a particular electronic record only when receiving, storing, or transmitting that record or providing a service for it on behalf of another person, and an intermediary is excluded from being the originator or the addressee.
  • Computer network test (Section 2(1)(j) IT Act): requires interconnection of one or more computers, computer systems, or communication devices both through communication media and through terminals or a complex of two or more interconnected computers or communication devices, whether or not the connection stays continuous.
  • Secure system conditions (Section 2(1)(ze) IT Act): hardware, software, and procedures must satisfy all four conditions of reasonable security from unauthorised access and misuse, reasonable reliability and correct operation, reasonable suitability for intended functions, and adherence to widely accepted security procedures.
  • Verification test (Section 2(1)(zh) IT Act): verifying a digital signature, electronic record, or public key requires checking both that the private key matching the subscriber's public key affixed the digital signature and that the initial electronic record remains intact without alteration.
  • Corresponding-law rule (Section 2(2) IT Act): where a referenced enactment or provision is not in force in an area, the reference is construed as pointing to the corresponding law or relevant provision, if any, in force there.

Example of Section 2 IT Act

Shabnam in Hisar uses a cell phone to generate and send an electronic purchase order by email through an internet service provider to Farooq, a wholesale supplier. Under Section 2(1) IT Act, Shabnam's cell phone is a "communication device" under clause (ha), and the purchase order sent in electronic form is an "electronic record" under clause (t). Shabnam is the "originator" under clause (za) because Shabnam generates and sends the electronic message, while Farooq is the "addressee" under clause (b) because Shabnam intends Farooq to receive that electronic record. The internet service provider that transmits the record on Shabnam's behalf is an "intermediary" under clause (w), and clauses (b) and (za) exclude that internet service provider from being either the addressee or the originator.

When Section 2 IT Act Does Not Apply

  • A definition in Section 2(1) IT Act does not apply where the context of a provision in the Act otherwise requires.
  • An intermediary is excluded from the definitions of both "addressee" under Section 2(1)(b) IT Act and "originator" under Section 2(1)(za) IT Act.
  • Calculators that are not programmable and capable of being used in conjunction with external files are excluded from the definition of "computer system" under Section 2(1)(l) IT Act.

FAQs on Section 2 IT Act

What is Section 2 IT Act?▼

The definitions provision of the Information Technology Act, 2000, Section 2 IT Act explains the meanings of technical, legal, and institutional terms used across the Act unless the context requires otherwise. Section 2(2) IT Act also provides that any reference in the Act to an enactment or provision not in force in an area is construed as a reference to the corresponding law or provision, if any, in force there.

Does a cell phone count as a communication device under Section 2 IT Act?▼

Yes. Section 2(1)(ha) IT Act defines a "communication device" to mean cell phones, handheld personal digital assistants, a combination of both, or any other device used to communicate, send, or transmit any text, video, audio, or image.

Is an internet service provider or online marketplace an intermediary under Section 2 IT Act?▼

Yes. Under Section 2(1)(w) IT Act, an "intermediary" for any particular electronic records is any person who receives, stores, or transmits that record on behalf of another person, or provides any service for that record. The clause expressly includes telecom, network, internet, and web-hosting service providers, search engines, online payment sites, online auction sites, online marketplaces, and cyber cafes.

Does an intermediary count as the originator or addressee of an electronic record under Section 2 IT Act?▼

No. Both Section 2(1)(b) IT Act (defining "addressee") and Section 2(1)(za) IT Act (defining "originator") expressly exclude an intermediary. Only the person sending, generating, storing, or transmitting the electronic message (or causing that to happen) is the originator, and only the person intended by the originator to receive the electronic record is the addressee.

Does an electronic signature include a digital signature under Section 2 IT Act?▼

Yes. Under Section 2(1)(ta) IT Act, an "electronic signature" means authentication of an electronic record by a subscriber using an electronic technique specified in the Second Schedule, and includes a digital signature. Under Section 2(1)(p) IT Act, a "digital signature" is authentication of an electronic record by a subscriber through an electronic method or procedure in accordance with Section 3 IT Act.

Are all calculators included in a computer system under Section 2 IT Act?▼

No. While Section 2(1)(l) IT Act defines a "computer system" to cover a device or collection of devices performing logic, arithmetic, storage, and communication control functions, the clause excludes calculators that are not programmable and capable of being used in conjunction with external files.

Does a computer resource include data and software under Section 2 IT Act?▼

Yes. Section 2(1)(k) IT Act defines "computer resource" to mean a computer, computer system, computer network, data, computer database, or software. Those defined terms operate in provisions such as Section 43 IT Act and Section 66 IT Act.

Which government is the appropriate Government under Section 2 IT Act?▼

The State Government or the Central Government, depending on the subject matter. Under Section 2(1)(e) IT Act, the State Government is the appropriate Government for matters in List II of the Seventh Schedule to the Constitution or relating to any State law enacted under List III, and the Central Government is the appropriate Government in any other case.

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Sources: Bare Act Text, Information Technology Act, 2000 ·