"In order to ensure successful processing of your MF SIP order, please maintain sufficient balance in your linked Bank account on the SIP due date.
If you do not have sufficient funds available in your linked Bank Account,  your MF SIP request for that date would get rejected.
If MF SIP order gets rejected due to insufficient funds in the linked Bank account on SIP due date for 3 consecutive times,your SIP order will be cancelled automatically."