Yes, you can file a divorce if your wife has a bipolar personality.
According to Section 13 of the Act, divorce or judicial separation can be obtained if the person has been “incurably of unsound mind,” or has been suffering continuously or intermittently from “mental disorder of such a kind and to such an extent that the petitioner cannot reasonably be expected to live with the respondent.”
And even if will file a case against you, the court will be in your favor more than her as she has an unsound mind.