Husband left and no idea where he is. What is the divorce procedure?

U can file a case seeking divorce on the ground of desertion and cruelty. U can also file a case under the Domestic Violence Act. U can seek maintance from your husband during the pendency of the divorce petition.

Seems like your husband is clearly deserted you. Now depending on what your demands are on him for example whether you want your belongings and money back, you may have to file a Contested petition for divorce among other criminal proceedings and In the event you have no such claims then if his family can be approached and talked too maybe a mutual consent petition. Anyway this is just general advise based on your query. It's only after a detailed meeting can a more specific advise be given to you.

As of now there is only one proceeding which can be initiated against your husband. Petition under Section 9 of the Hindu Marriage Act. This is great for seeking order from court directing him to take you back respectfully as your wife. Maintenance can be sought if admits his intention to take you home as his wife. The other proceedings can also be initiated depending upon other facts involved in your matter.