No marital relation after 15 days of marrage for 3 years

Yes, there can be divorce. But, to save yourself from the maintenance you have to prove that her income is more than that of yours.

Better you consult a Family Law Lawyer for further guidance.

Thanks for your reply.

Can we file Divorce under nullity of Divorce. Because she has not performed her Duties as per Hindu Marriage act.

There is nothing called as nullity of divorce. Nullity and divorce are 2 different decrees. The husband has to apply for the divorce on the grounds of desertion.

you can file a divorce case in the court,as she does not want relations with you.engage some local lawyer for assistance.

it is not nullity of divorce. It is nullity of marriage. In this case as the marriage has been consummated, howsoever short the period may be, nullity of marriage is not sustainable. But the divorce can be sought for on the grounds of desertion, cruelty, and irretrievable breakdown of marriage.

The maintenance may not be granted by the court if the desertion for such a long period is proved. But finally it all depend on the property status of the husband and wife.

The facts of your case, if proven, will make it very easy for your brother to get a divorce. Get a good advocate. 

I think you must check reason for her previous marriage divorce.Is she mentally stable?You can apply for nullity of marriage under section12 and imoptancy of wife and non consumption of marriage.Please check the reason of previous marriage secretely