What if Zerodha shuts down?

Zerodha is a CDSL depository participant, and in any circumstances, if the broker shuts down, then investment in stocks remains safe. It is because; your investment is with CDSL and NSDL DP, and in case of bankruptcy, customers can open a new trading account with another broker and get their shares back through linking to the CDSL Demat account. Thus, customers don't need to be worried about the broker's business shut down or failure.