How to legally recover my money?

I used to lend money to a person I know well, who is quite a bit older than me. He often asks for small amounts for various urgent reasons, like claiming he had an accident or someone passed away. The total now amounts to approximately ₹9,000. While this may seem like a small amount to some, it's quite significant for a student like me. Recently, he changed all his phone numbers except one and has blocked me. I don’t know his address, so I’m unable to recover my money. I do have all the texts and transaction details through Google Pay.