A person whose husband or wife is living marry again will be punishable Section 17 of the Hindu Marriage Act 1955. Provisions of Indian Penal Code Section 494 and 495 are also applicable in this case.
Section 17 of the Hindu Marriage Act 1955 - Punishment
Any marriage between two Hindus solemnized after the commencement of this Act is void if at the date of such marriage either party had a husband or wife living; and the provisions of Sections 494 and 495 of the Indian Penal Code (45 of 1860) shall apply accordingly.
Section 494 of the Indian Penal Code says that:
"who ever having a husband or wife living, marries in any case in which such marriage is void by reason of its taking place during the life of such husband or wife, shall be punished with imprisonment of either description of a term which may extend to seven years and shall also liable to fine".
But this section does not intend to any person whose marriage with such husband or wife has been declared void by a Court of Competent Jurisdiction.
Section 495 of the Indian Penal Code has provision of :
Same offence with concealment of former marriage from person with whom subsequent marriage is contracted.
"Whoever commits the offence defined in the last proceeding section having concealed from the person with whom the subsequent marriage is contracted, the fact of the former marriage, shall be punished with imprisonment of either description for a term which may extend to ten years, and shall also be liable for fine."