1. Try to collect evidence of her cruelty by audio/video recording her conversations,
2. After that file a divorce suit on the ground of cruelty,
3. For filing divorce suit, you shall have submit your marriage certificate and/or marriage invitation card/ ,marriage photographs and your present address proof,
4. She will file maintenance petition if she is not employed and in that case you dhall have to pay an amount with in 1/5th to 1/3rd of your monthly net salary,
5. So, buy property before filing the suit so that a good amount of money can be shown as compulsorily deducted from your monthly salary,
6. Alternatively, you can negotiate with your wife for jointly filing a mutual consent divorce petition which will be decided with in 6 & 1/2 months from the date of its filing.