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Mutual Fund Forms

NACH / OTM Mandate Form: How to Fill & Download

A complete guide to the NACH / One Time Mandate (OTM) — what it is, how the auto-debit works, the documents required, step-by-step filling instructions, registration timelines, and a free universal mandate form you can download.

⬇ Download NACH / OTM Form (PDF)
Last updated: June 2026 · Reviewed by Binod Kumar Shukla, AMFI Registered MF Distributor (ARN-50844)
On this page
  1. What is NACH / OTM?
  2. How it works
  3. Who needs it?
  4. Documents required
  5. How to fill it
  6. e-Mandate (online)
  7. Registration time
  8. Rejection reasons
  9. FAQs
  10. Related forms

What is a NACH / OTM mandate?

A NACH mandate — also called a One Time Mandate (OTM) — is a one-time authorisation you give your bank to auto-debit a set maximum amount towards your mutual fund investments. Once registered, your SIP instalments and lump-sum purchases are deducted automatically, without logging in or paying manually each time.

NACH stands for National Automated Clearing House, the system run by NPCI since 2016 that replaced the older ECS. The big advantage: one OTM can power multiple SIPs and purchases within the limit you set — you don't register again for each one.

In shortThe mandate sets a maximum daily limit (a cap, not the amount debited each time). The actual debit is only your SIP or purchase amount, and money can only move to a folio in your own name.

How the OTM auto-debit works

  1. You authorise: You register the mandate with bank account, IFSC, a maximum amount, and frequency.
  2. Bank validates: The request goes through NACH; your bank verifies and activates the mandate.
  3. AMC requests debit: On each SIP date, the fund house sends a debit request via NACH.
  4. Auto-debit: Your bank debits only the SIP/purchase amount (within the cap) and credits your folio.

Who should use a NACH / OTM mandate?

  • SIP investors who want hands-free monthly investing.
  • Lump-sum investors who invest online without a payment gateway each time.
  • Anyone whose SIP auto-debit failed and needs a fresh mandate.
  • Both individual and non-individual unitholders can register OTM.

Documents required

🏦 Bank account number
🔢 IFSC / MICR code
📄 Cancelled cheque
✍️ Signature (as per bank)
📁 Folio number (if existing)
📱 Aadhaar-linked mobile (e-mandate)
Signature must match bank recordsThe mandate is rejected if the signature doesn't match your bank's records, or if any mandatory field (account number, IFSC, amount, frequency) is left blank.

How to fill the NACH / OTM form — step by step

  1. Mandate type: Tick Create (or Modify / Cancel for an existing mandate).
  2. AMC / UMRN: Write the fund house name. For modify/cancel, add the UMRN of the existing mandate.
  3. Bank account: Enter bank name, account number, IFSC and account type (SB/CA/CC).
  4. Maximum amount: Set a cap a little higher than your current SIPs, so you won't need to re-register later.
  5. Frequency: Choose Monthly, Quarterly, or "As & when presented".
  6. Validity: Set a start date (within 120 days) and an end date, or mark "Until Cancelled".
  7. Account holder: Fill name, PAN, mobile and email.
  8. Sign: Sign exactly as per bank records — all account holders sign for joint accounts.
Set the cap thoughtfullyThe maximum amount is the most that can ever be debited in a day — not what's taken each time. Setting it slightly higher than your SIPs avoids re-registration when you increase investments later.

e-Mandate — the faster online way

Most fund houses and registrars now offer a paperless e-Mandate. You select your folio and bank, then authenticate online via net banking or an Aadhaar/debit-card OTP. e-Mandates are usually approved in a few days — much faster than physical forms.

Registration timeline

ModeTypical time to activate
e-Mandate (online)About 2–3 working days
Physical NACH formAbout 15–30 calendar days
First SIP debitAfter the mandate is active, on your SIP date

Common rejection reasons

  • Signature mismatch with bank records — the most common cause.
  • Any mandatory field left blank (account number, IFSC, amount, frequency).
  • Wrong IFSC or an inactive/closed bank account.
  • Maximum amount lower than the SIP amount.
  • Start date set more than 120 days ahead.
  • Mismatch between mandate name and folio holder.

Frequently asked questions

What is the full form of OTM?
OTM stands for One Time Mandate — a single authorisation that lets your bank auto-debit your mutual fund investments through the NACH system.
What is the difference between NACH and OTM?
NACH is the clearing system that processes the auto-debit; OTM is the one-time mandate you register to use it. In mutual funds the terms are often used interchangeably.
Is there a limit on the mandate amount?
SEBI does not set a fixed limit. The maximum is decided by you (and your bank/AMC's caps). It's an upper limit per day, not the amount debited each time.
Can one mandate be used for multiple SIPs?
Yes. A single OTM can fund multiple SIPs and lump-sum purchases, as long as each debit stays within the mandate's maximum limit.
How long does NACH registration take?
An online e-Mandate is usually active in 2–3 working days, while a physical form can take about 15–30 days.
Is my money safe with an auto-debit mandate?
Yes. Debits stay within your set limit, and under SEBI/RBI rules the money can only move to a mutual fund folio in your own name — it cannot go to a third party.
Can I cancel or modify a mandate?
Yes. You can cancel or modify a mandate anytime by instructing your bank or the AMC, usually quoting the UMRN.
Do I need a mandate for a one-time lump sum?
Not necessarily — lump sums can be paid by cheque/NEFT/UPI. A mandate is mainly for recurring SIP auto-debits, though it can also fund lump sums.
What is UMRN?
UMRN (Unique Mandate Reference Number) is the ID assigned to your registered mandate; you'll need it to modify or cancel that mandate.
What does "As & when presented" frequency mean?
It allows debits whenever the AMC presents a valid request, rather than on a fixed cycle — useful when you mix SIPs and lump sums under one mandate.
Can non-individuals register an OTM?
Yes. Both individual and non-individual unitholders (companies, HUF, etc.) can use NACH/OTM.
What happens if a debit fails?
A failed debit is usually skipped; the AMC may not penalise it, but your bank could levy a charge. Repeated failures can lead to mandate or SIP cancellation.
Is a cancelled cheque mandatory?
For physical mandates, a cancelled cheque with your printed name helps the bank verify account details and reduces rejection.
Can I start the mandate without a SIP?
Yes. You can register an OTM independently, though when creating your first SIP both are usually filled together.
How long is a mandate valid?
You choose — a fixed period (e.g. 5 years) or until you cancel it. Many investors choose "Until Cancelled".
Can you help me register the mandate?
Yes. As your AMFI-registered distributor (ARN-50844), I can help you fill the mandate correctly and set up the e-Mandate.
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Reviewed by Binod Kumar Shukla

AMFI Registered Mutual Fund Distributor (ARN-50844) with 20+ years of experience helping investors across Delhi NCR set up SIPs, mandates, KYC and insurance.

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Disclaimer: This page is for investor education. The universal NACH/OTM form provided here helps collect your details and is not a substitute for an AMC's or bank's official mandate form; final submission may require the official form. Mutual fund investments are subject to market risks; read all scheme related documents carefully.

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