Have no idea about India in that regard, but before you do anything you need a diagnosis. Most people who think they have bipolar, and many who are diagnosed with it, don't actually have it. The experts in this are psychiatrists and psychologists, not your regular doc. Once you have a diagnosis and know what you're dealing with, you can ask your psychiatrist or psychologist if they know of groups. If you are truly bipolar, the only treatment for it is medication.
I took a bipolar and depression test online to sort of rule out one of the two. I thought I was bipolar too and it turned out I was much more on the depression side. It might be worth a try to take some tests, therapists would probably be asking similar questions for a point system. Couldn't hurt.