In India, we have various personal laws that governs different communities. Therefore, to answer your question in detail, please provide enough information to get better response. However, I will try to guide you with my hindsight as under:
1) if you belong to Hindu Community, as per Hindu law you need to approach family court for seeking divorce;
2) In case if you are a muslim, Shariat or Muslim Personal law is applicable wherein, divorce can be sought by mutual consent of both the parties.
Thanks.