The NACH mandate form takes about 15 working days after we receive it to get approved. Unfortunately, this is bank specific TAT and there is nothing we can do to expedite this process. You can help reduce the total time to start your SIP by sending us the NACH mandate as soon as you place a SIP Order. We now allow you to setup your SIP online too, if you so wish. This eliminates the need for sending us any paper-based forms.