Where can i find SubWalletId in PayTm

I am creating an affiliate market website using payTm, For payout transaction, it requires and Id called SubWalletId, I am unable to find It, Where can i find it in the dashboard, or is their any API end point i can use to get my SubwalletId.

If any resources/documentation similar to payout in any other payment gatweay on HOW TO IMPLEMENT AFFILIATE PAYOUT is also much appreciable