The client can switch the Fund Source from Trading Account to UPI Mandate(TSBM) from all the web, Mobile and exe applications. The client will have to go to Profile → My Details → Fund Source(TSBM) and put a switch request.
Yes. Client can link multiple demat account with Trading account. To link an additional demat account with the trading account, needs to submit the required documents as per the process outlined. Please find enclosed: Duly filled Change in Account ...