Section 80 of the Bharatiya Nyaya Sanhita, 2023 deals with

Section 80 of the Bharatiya Nyaya Sanhita, 2023 (formerly s.304B IPC) deals with dowry death. A death is a 'dowry death' where all of the following apply:

• a woman dies of burns or bodily injury, or otherwise than under normal circumstances;
• the death occurs within seven years of her marriage;
• it is shown that soon before her death her husband or his relative subjected her to cruelty or harassment for, or in connection with, a demand for dowry.

That husband or relative is deemed to have caused her death. The punishment is imprisonment for not less than seven years, which may extend to imprisonment for life.

Child marriage is governed by the Prohibition of Child Marriage Act, 2006, and sexual harassment by s.75 BNS, so the catch-all option is wrong. Cruelty by the husband or his relatives is a separate offence under s.85 BNS.