Hello,
A case of adultery can only be filed by the husband of that women.
Section-497- Adultery “Whoever has sexual intercourse with a person who is and whom he knows or has reason to believe to be the wife of another man, without the consent or connivance of that man, such sexual intercourse not amounting to the offence of rape, is guilty of the offence of adultery, and shall be punished with imprisonment of either description for a term which may extend to five years, or with fine, or with both. In such case, the wife shall not be punishable as an abettor.
The Hindu Marriage Act (HMA) under Section 13(1)(i) have mentioned in a very precise manner, that any marriage may be dissolved by a decree of divorce on filing of a petition by you on the ground that your husband or wife has, after the solemnization of the marriage had voluntary sexual intercourse with any person other than you.
Regards