Postdated checks or electronic debits from bank accounts can be used for this automation. You can set up electronic debits using NACH or the "direct debit" capability (National Automated Clearing House). For the procedure, application forms are accessible at the relevant Mutual Funds.
This lessens your workload because you won't need to fill out a new form each month or decide which investment strategy to use. Simply choose the scheme, the money, and the date, and all transactions will be carried out automatically for the duration you specify. An SIP can be established for up to six months. Just make sure your bank account has enough money in it.
Your query is pertinent at this point. The fund house may cease depositing post-dated checks, refund any unused checks, or suspend deducting from your account if you miss two or three consecutive payments. Both a fine and a forfeiture are not imposed.
At any moment, you can resume your SIP in the same account.