Desertion by wife

Generally desertion in terms of matrimonial dispute comrpises two years separation, i.e., two years period should have passed after either of the party abandons the company of the other party.

You can file a divorce caes on the grounds of cruelty citing her abandonment of matrimonial hiome as grounds of cruelty.

Husband can't file case immediately as cooling period is 2 years. 

For filing a petition for divorce on the ground of desertion either of spouse has to wait for a period of 2 years. 

The husband has option in seeking restitution of conjugal rights, but such a measure could, quite often, be counterproductive.

Under the Hindu Marriage Act  (Section 13(1)(ib)), desertion is a valid ground for divorce. Desertion means one spouse has abandoned the other without reasonable cause, with the intention of not returning, for a continuous period of at least two years immediatelymedian: immediately preceding the filing of the divorce petition.

This two-year period is essentially the "cooling period" required to establish desertion as a ground for divorce. The husband cannot file for divorce immediately upon desertion; he must wait until the desertion has persisted for two years.