What will happen if ECS SIP cancellation form is not sent to MOSL Malad office?

Without client’s confirmation letter, banks will not cancel the mandate. Basis the cancellation in Lite Terminal, MOSL will cancel the BSE registration, but funds will keep debiting from clients bank account and will be credited into client’s ledger. i.e. Stocks / ETF / MF will not be purchased but funds will received from clients bank account