You can’t really sponsor. All that your cousin has to do is give a 6 months bank statement or else an auditor certificate with a networth. There is no minimum networth that exchanges in India ask for.
Sir, I just created my account a week ago. I want to activate FnO segment, I cannot get six month bank statement as the account is only 1 week old. I am a student so there is no chance of ITR or Salary slip, what can I do to activate FnO ?
You can start buying some shares for long term investment and get a statement of holdings from your broker and submit that as an income proof. This would allow you to activate the FNO segment. I would suggest you to first try out paper trading at sensibull to get a hang of trading FNO , since you can lose much more than how much money you have in your account.