No, it is not mandatory. Depending upon the internal comfort and system of each bank, it is possible for DBs to collect applications, block the amount and then transfer to Controlling Branch (CB) for centralized uploading or DBs to only collect applications and upload directly. It may please be noted that as far as investors are concerned, they would be informed about addresses of DBs where they can submit ASBAs. Thereafter, the procedure to be followed is totally internal to SCSB and it is possible that DBs which accept ASBA, only upload the bids or the DB will transfer the applications to the CB for uploading the bids, subject to time lines specified by SEBI being followed.