§375. Rape. A man is said to commit "rape" who, except case hereinafter excepted, has sexual intercourse〔Note: sexual intercourse meant peno-vaginal penetration, all other sexual acts were covered under Section 377 as "unnatural offenses"; VV Devasia (2009), Social Work Concerns and Challenges in the 21st Century, ISBN 978-8131304679, p. 71〕 with a woman in circumstances falling under any of the six following descriptions:-
Firstly. –– Against her will.
Secondly. –– Without her consent.
Thirdly. –– With her consent, when her consent has been obtained by putting her or any person in whom she is interested, in fear of death or of hurt.
Fourthly. –– With her consent, when the man knows that he is not her husband, and that her consent is given because she believes that he is another man to whom she is or believes herself to be lawfully married.
Fifthly. –– With her consent, when, at the time of giving such consent, by reason of unsoundness of mind or intoxication or the administration by him personally or through another of any stupefying or unwholesome substance, she is unable to understand the nature and consequences of that to which she gives consent.
Sixthly. –– With or without her consent, when she is under sixteen〔Note: originally ten years in 1860 law, replaced by the word "twelve" in 1891, and replaced with the word "fifteen" in 1950, and word "sixteen" in 1983; Kush Kalra and Priyanka Barupal, Law Sex and Crime, ISBN 978-9382652229, pp. 66-87〕 years of age.
Explanation. –– Penetration is sufficient to constitute the sexual intercourse necessary to the offence of rape.
Exception. –– Sexual intercourse by a man with his own wife, the wife not being under fifteen years of age, is not rape.

§375. A man is said to commit “rape” if he:–– (a) penetrates his penis, to any extent, into the vagina, mouth, urethra or anus of a woman or makes her to do so with him or any other person; or (b) inserts, to any extent, any object or a part of the body, not being the penis, into the vagina, the urethra or anus of a woman or makes her to do so with him or any other person; or (c) manipulates any part of the body of a woman so as to cause penetration into the vagina, urethra, anus or any part of body of such woman or makes her to do so with him or any other person; or (d) applies his mouth to the vagina, anus, urethra of a woman or makes her to do so with him or any other person, under the circumstances falling under any of the following seven descriptions:
Firstly.–– Against her will.
Secondly. –– Without her consent.
Thirdly. –– With her consent, when her consent has been obtained by putting her or any person in whom she is interested, in fear of death or of hurt.
Fourthly. –– With her consent, when the man knows that he is not her husband and that her consent is given because she believes that he is another man to whom she is or believes herself to be lawfully married.
Fifthly.–– With her consent when, at the time of giving such consent, by reason of unsoundness of mind or intoxication or the administration by him personally or through another of any stupefying or unwholesome Substance, she is unable to understand the nature and consequences of that to which she gives consent.
Sixthly. –– With or without her consent, when she is under eighteen years of age.
Seventhly. –– When she is unable to communicate consent.
Explanation 1.–– For the purposes of this section, “vagina” shall also include labia majora.
Explanation 2.–– Consent means an unequivocal voluntary agreement when the woman by words, gestures or any form of verbal or non-verbal communication, communicates willingness to participate in the specific sexual act;
Provided that a woman who does not physically resist to the act of penetration shall not by the reason only of that fact, be regarded as consenting to the sexual activity. Exceptions –– 1. A medical procedure or intervention shall not constitute rape; 2. Sexual intercourse or sexual acts by a man with his own wife, the wife not being under fifteen years of age, is not rape.