1. Since she is not ready to go for mutual consent divorce you may unilaterally apply for dissolution of marriage on the ground of cruelty. The court will issue her summons to contest your case, so before you go to court ensure that you have evidence of requisite degree to prove your allegations.
2. She may also hit back by filing cases of dowry harassment against you, so be prepared to apply for anticipatory bail.
3. Consult in detail with a lawyer to know the degree of evidence required by you.