Reference · payment systems
India's payment rails, side by side
Every digital payment in India runs on one of a handful of systems. They differ in speed, limits, how they're authorised and what they're for. This page compares them, with the rules RBI publishes for each where they're stated, and points to the guide that covers each in depth.
The rails at a glance
| Rail | What it's for | How it moves | Availability |
|---|---|---|---|
| UPI | Paying people and merchants from a bank account, via an app | Real time; customer authorises with a UPI PIN | Round the clock |
| IMPS | Instant bank transfers, including payouts | Real time, account to account | Round the clock |
| NEFT | Bank transfers of any size | Half-hourly batches; credit within two hours of batch settlement | 24x7x365 |
| RTGS | High-value transfers, ₹2,00,000 and above | Real time, gross; credit within 30 minutes of the message | 24x7x365 since 14 Dec 2020 |
| NACH | Recurring debits and bulk credits: EMIs, investments, salaries | Presented against mandates on schedule | On processing days |
| Cards | Payments online and at counters, including credit and EMI | Authorised by the issuer, settled later | Round the clock |
| BBPS | Bill payments to billers on the system | Bill fetched, then paid, with a BBPS reference | Through participating apps, banks and agents |
| NETC | Toll payments by FASTag | Tag read at the plaza, debited from the tag account | Round the clock |
NEFT and RTGS details from RBI's FAQs. UPI, IMPS, NACH, BBPS and NETC are operated by NPCI and its subsidiary for BBPS; their specific limits aren't restated here.
Which rail for which job
Most businesses use several rails at once, each for what it does best. The choice is usually made for you by the customer (they pay how they prefer) for money coming in, and by you for money going out.
| Job | Usually |
|---|---|
| Customer paying at checkout | UPI and cards, with net banking and wallets as options |
| Customer paying at a counter | UPI QR and card terminals |
| Recurring customer payments | UPI or card e-mandates; NACH for bank accounts and larger amounts |
| Paying salaries and vendors | IMPS, NEFT, or NACH credits in bulk |
| A large one-off transfer | RTGS |
| Paying utility and other bills | BBPS |
| Tolls on highways | NETC, via FASTag |
When a transfer can't be credited
Transfers fail for ordinary reasons: a closed account, a wrong account number, a name that doesn't match. RBI's FAQs set out what should happen next for NEFT and RTGS, and RBI's framework on turnaround times and customer compensation for failed transactions covers other authorised payment systems.
NEFT
Returned within two hours of the batch; penal interest at repo rate plus 2% if the bank delays.
RTGS
Returned within one hour of receipt, or before the end of the RTGS business day, whichever is earlier.
Other systems
Timelines and compensation under RBI's failed-transaction framework of 20 September 2019.
How payments are authorised
Almost every digital payment in India needs two factors of authentication under RBI's 2025 Authentication Directions. Some payments are listed exceptions: small contactless card payments at counters (up to ₹5,000 per transaction), recurring mandate debits after the first, NETC toll payments, and tap-and-pay UPI on NFC-enabled terminals, among others.
For a business, authentication shapes checkout design: which step asks for an OTP or PIN, and which payments can happen without the customer present.
Related reference
Payment rail questions
Which payment rails in India work 24x7?
UPI and IMPS run around the clock. RBI's FAQs say NEFT is available on all days, round the clock, in half-hourly batches, and RTGS has been available 24x7x365 since 14 December 2020. Processes built on top of them, such as provider settlements and mandate debits, may still follow working days.
Is there a limit on NEFT transfers?
RBI imposes no limit on NEFT transfers, per its FAQs, but a bank may set its own limits based on its risk assessment, with its board's approval.
What is the minimum for RTGS?
RBI's FAQs give a minimum of ₹2,00,000 for RTGS, with no upper limit set by RBI.
How fast should a NEFT or RTGS credit arrive?
For NEFT, RBI's FAQs say a beneficiary's account should be credited within two hours of the batch settlement. For RTGS, the beneficiary bank must credit the account within 30 minutes of receiving the funds transfer message.
What happens if a transfer can't be credited?
For NEFT, the destination bank must return it within two hours of completion of the batch, and a bank that delays is liable for penal interest at the RBI repo rate plus two percent, per RBI's FAQs. For RTGS, funds are returned within one hour of receipt or before the end of the RTGS business day, whichever is earlier.
Official sources
- RBI — FAQs on NEFTAvailability, batches, limits, credit and return times, penal interest.
- RBI — FAQs on RTGS24x7x365 from 14 Dec 2020, ₹2 lakh minimum, 30-minute credit, return timing.
- RBI — Authentication mechanisms for digital payment transactions Directions, 2025Two-factor requirement and Annexure-1 exemptions.
- RBI — Harmonisation of turnaround time and customer compensation for failed transactions (20 Sep 2019)
Last reviewed . Examples, amounts and screens marked illustrative are not Peneu figures.