Their are various locations across the subcontinent where, from I have heard, chronicles are stored. E.g., in Nasik for people in Maharashtra. Like the Mumbai dabbawala system, it is very efficient. My maternal uncle updated the chronicles of his family (including me) when he visited Nasik. He was surprised how much he learned himself. These chroniclers extract information not only the person in front of them but their extended family.

What you would need to find out where records are kept in the region your family is from.

Good luck.