Update your mobile numbers /email IDs with us. Receive alerts on your Registered Mobile for all debit and other important transactions in your demat account directly from Exchange/ CDSL on the same day.No need to issue cheques by investors while subscribing for IPO. Just write write the bank account number and sign in the application form to authorise your bank to make payment in case of allotment. No worries for refund as the money remains in Investor's account"