Yes, you can. Threatening to commit suicide amounts to emotional and mental cruelty, therefore, you can seek divorce.

Judicial separation: In simpler terms, it means an order whereby you can legally separate from your spouse for a while but the marriage is still intact.
Annulment: It means that the marriage is not valid. Unlike divorce, annulling a marriage is retroactive, i.e. it completely erases the existence of any marriage, and establishes that the marriage was never valid.
Divorce: A divorce is a legal process to dissolve or terminate a marriage.

Depending upon the circumstances, the six months waiting period in a mutual divorce proceeding can be waived of.

Yes, if you were married in India under the Hindu law, then you can file a suit against the foreign divorce decree.

You can directly proceed before the family court. There's no compulsion for notice. Now, you have to file divorce case before the family court. If wife/husband doesnt appear, the proceedings will be ex parte.

Divorce lawyers focus on being the mediator between any emotional situations happening by providing clear guidance and offering a straightforward plan. Negotiating is important to keep your best interests and as divorce lawyers, we'll want the process to satisfy you.