Your mandate limit is the maximum amount of money you can invest on any given day of a month. It is set at Rs. 25,000 by default, which means that using this mandate, you can invest up to Rs. 25,000 in SIPs on any day of the month.
This mandate can be used to set up multiple SIPs across fund houses. You can also use it increase your existing SIP amount, or add new SIPs on different dates on the month (from the 1st to the 28th) as long as the total amount being invested on any day is not more than Rs. 25,000.
You can also generate a new mandate with a different limit based on your investment needs.
Once the SIP is set up and the ECS mandate is approved by the bank, the SIP amount will be auto-debited from your account and invested into the mutual fund scheme.