1. Only ground that the marriage has not been consummated is not sufficient for seeking the decree of divorce.
2. It shall have to be proved that marriage has not been consummated because of impotency of the husband and physical incapability of the wife to have physical relationship.
3. In your case, you can file an annulment petition on the ground that your consent for the marriage was taken by suppressing the vital fact that she is under psychological treatment and drugs and had the said fact would have been informed to you, you would not have married her.
4. If she does not contest, you will get the decree for annulment of your marriage.
5. Alternatively, you both can jointly sign a mutual consent divorce petition on acceptable terms whih will be disposed of by the Court with in 6 & 1/2 months from the date of its filing.