Word, gesture or act intended to insult modesty of a woman.

Click to Watch Video Explanation of Section 79

Whoever, intending to insult the modesty of any woman, utters any words, makes any sound or gesture, or exhibits any object in any form, intending that such word or sound shall be heard, or that such gesture or object shall be seen, by such woman, or intrudes upon the privacy of such woman, shall be punished with simple imprisonment for a term which may extend to three years, and also with fine.

Section 78 of the Bharatiya Nyaya Sanhita  

Section 80 of the Bharatiya Nyaya Sanhita