Every personal loan in India involves a NACH mandate — a standing instruction that authorises your lender to automatically debit your bank account for EMI amounts on specified dates. Understanding exactly what you are authorising is important, because it affects your account, your credit score, and your relationship with your bank.

What Is NACH?

National Automated Clearing House (NACH) is a payment system operated by NPCI (National Payments Corporation of India). It enables scheduled, recurring debit instructions from your bank account to a lender's account. When you sign a NACH mandate (physically or electronically through e-NACH), you are authorising NPCI and your bank to debit a specified maximum amount on specified dates until a specified end date.

What the Mandate Authorises

A NACH mandate specifies: your bank account number and IFSC, the maximum amount that can be debited per transaction, the frequency (monthly, for personal loan EMIs), the start and end date (your loan tenure), and the lender's creditor ID. The lender can debit any amount up to the maximum authorised. For personal loans, this maximum is typically set at 110–120% of your EMI to cover any penal charges if applicable.

Check Your Mandate: Before signing, confirm the maximum debit amount, the end date (it should match your loan tenure), and the creditor ID (it should be the NBFC or bank — not a third-party app). You can view active NACH mandates through your bank's net banking portal.

What Happens on a NACH Bounce

If your account does not have sufficient funds on the EMI due date, the NACH presentation fails ("NACH return"). Your bank will charge you a dishonour fee (₹200–500 typically). The lender will charge a separate bounce fee (disclosed in your loan agreement). The lender may represent the mandate once more within the same cycle. The missed payment will be reported to the credit bureau.

How to Cancel a NACH Mandate

You can request cancellation of a NACH mandate through your bank's net banking portal or by visiting the branch. However, cancelling the mandate does not cancel your loan obligation — you remain responsible for repaying all EMIs. If you cancel the mandate, you must arrange alternative payment (UPI, NEFT) for each due date. Some lenders will treat a cancelled mandate as a technical default — check your loan agreement before cancelling.

e-NACH vs Physical NACH

e-NACH (electronic NACH) is registered online via net banking or debit card OTP — no physical paper form required. It is faster and preferred for digital lending. Physical NACH requires signing a paper form with your signature/stamp, which is scanned and submitted to your bank. Both have the same legal effect.