Bulk SMS for Banks, NBFCs, Fintech & Insurance in India

Send payment OTPs and debit alerts on -T headers, EMI, KYC and premium reminders on -S headers, and consented offers on -P, all from one TRAI DLT-registered account with WhatsApp, RCS and voice fallback.

-T OTPs & alerts-S EMI remindersISO 27001 & SOC 2SMPP & HTTP API

Start Free — 1,000 SMS Credits Transactional SMS Pricing

99.9%Uptime SLA

2-6 secTypical delivery time

ISO 27001Plus ISO 9001:2015 & SOC 2

Pay As You GoPay only for delivered SMS

Quick Answer

Bulk SMS for banks and NBFCs is DLT-registered A2P messaging for OTPs, debit and UPI alerts, EMI and KYC reminders, premium dues and consented loan offers. OTPs and transaction alerts go as transactional (-T), reminders to existing customers as service (-S), and offers as promotional (-P). SMSGatewayHub runs all three on one account with SMPP and HTTP APIs, ISO 27001 and SOC 2 controls, and Pay As You Go pricing.

Banking and NBFC messaging at a glance

Pick the category before you register the template: it decides the header suffix customers see, whether DND numbers receive it and when you may send it.

Message	Channel	Category & suffix	When to send
Login, payment and card-not-present OTP	OTP SMS, WhatsApp authentication template or voice OTP as fallback	Transactional -T	Instantly, inside the customer's own transaction
Debit, UPI and ATM withdrawal alert	Transactional SMS, plus email where registered	Transactional -T	Right after the debit, 24/7 including DND
Credit received, balance and cheque status update	SMS, email	Service -S	When the account event happens
KYC or re-KYC due, nominee update	SMS, WhatsApp utility template	Service -S	Ahead of the due date, with reminders
Loan sanction and disbursal confirmation	SMS, email with sanction letter	Service -S	On sanction and on disbursal
EMI due reminder and EMI bounce notice	SMS, WhatsApp utility, voice SMS	Service -S (not service explicit)	A few days before due date, on due date and after a failed debit
Insurance premium due and policy renewal	SMS, WhatsApp utility, email	Service -S	Before the due date and within the grace period
Trade confirmation, SIP debit, NAV or statement ready	SMS, email	-T when customer-initiated, otherwise -S	After the order, debit or statement run
Pre-approved loan, card or top-up offer	Promotional SMS, RCS rich card, WhatsApp marketing	Promotional -P	Consented or non-DND numbers, within the promotional time window
Lead capture and callback request	Missed call, toll-free, two-way SMS	Customer-initiated	Any time; reply with -T or -S as appropriate

Service explicit is no longer a separate category: those templates now travel as promotional (-P). Existing-customer reminders such as EMI dues stay on service (-S). See service explicit vs service implicit SMS, and for the use-case story behind these flows read the banking & financial services case study.

Every SMSGatewayHub product your bank, NBFC or fintech can use

One account, one wallet and one set of delivery reports across every customer touchpoint.

Transactional SMS

Debit, credit, UPI and EMI alerts on -T and -S headers that reach DND numbers 24/7. Transactional SMS

OTP SMS

WhatsApp Business API

KYC document collection, statements and EMI reminders on a verified business profile. WhatsApp Business API

RCS Messaging

Brand-verified rich cards with buttons for card, loan and insurance journeys, with SMS failover. RCS messaging

Voice SMS & IVR

Regional-language EMI reminders, voice OTP fallback and IVR menus for balance or policy queries. Voice SMS

Missed Call & Toll-free

Loan enquiries, callback requests and consent capture with a single missed call or toll-free number. Missed call services

Bulk Email

Statements, sanction letters, policy documents and contract notes to the registered email ID. Bulk email

SMPP & Developer API

Bind core banking, LOS, LMS or trading back-ends over SMPP or HTTP/HTTPS APIs. SMPP API

What changed for banking and financial services messaging

Four rule changes BFSI compliance and product teams should already be planning around.

Header suffixes and the end of service explicit

Operators now append -T, -S, -P or -G to every header, so customers see the message type. Service explicit has been merged into promotional (-P); EMI and account reminders to existing customers belong on service (-S).

Typed variables and whitelisted CTAs

Templates must tag values as {#numeric#}, {#alphanumeric#}, {#url#}, {#urlott#}, {#cbn#} or {#email#}. Every payment link, app link and helpline number must be registered as a CTA on DLT. Variable tagging explained

1600-series numbers for BFSI voice calls

Service and transactional voice calls from regulated banks, NBFCs, mutual funds, pension funds and brokers are moving to 1600-series numbers, while promotional calls use the 140 series. SMS keeps using DLT headers.

Two-factor rules for digital payments

RBI's latest authentication directions require at least two factors for digital payments, one of them dynamic. SMS OTP remains a permitted factor, and issuers may add risk-based checks and newer factors alongside it.

Why SMSGatewayHub

Why banks, NBFCs and fintech brands choose SMSGatewayHub over other providers

Regulated financial messaging needs the right category on every template, auditable controls and delivery you can verify. Here is what you get.

Right category on every template

Our DLT team maps OTPs and alerts to -T, reminders to -S and offers to -P, converts templates to typed variables and registers your CTAs. DLT priority support

Certified information security

ISO 27001, ISO 9001:2015 and SOC 2 certified, VAPT tested and TRAI DLT registered, with documents ready for vendor due diligence. Trust Center

Locked templates and audit trails

Lock approved templates for sub-users, restrict privileges per branch or product team and keep usage logs for internal and regulatory audits.

Multi-operator routing with failover

Traffic is routed across operators with automatic failover, giving 2-6 second typical delivery and a 99.9% uptime SLA. Live delivery reports

Pay only for delivered SMS

Billing on delivered messages, not on submissions, so failed OTP retries do not inflate cost. How it works

Fallback across channels

Fall back from SMS to WhatsApp, voice or missed call verification so customers are not locked out of a payment or login, and send in Hindi and regional languages.

Question to ask any provider	SMSGatewayHub
Will you put my EMI reminders on the right category?	Yes. Existing-customer reminders go on service (-S), never on promotional.
Which security certifications can you show my InfoSec team?	ISO 27001, ISO 9001:2015, SOC 2 and VAPT tested. See the Trust Center
Can you connect over SMPP for high-volume alerts?	Yes, SMPP plus HTTP and HTTPS APIs. SMPP connectivity
Am I charged for undelivered OTPs?	No. You pay only for delivered SMS.
Who whitelists my payment links and helpline numbers?	Our DLT team registers them as CTAs and maps template IDs.
Can I test before signing a contract?	Yes, start with 1,000 free SMS credits. Create a free account

15+ years in business, with 10,000+ registered businesses and 2,000+ enterprise clients. Read bulk SMS for banking: use cases and compliance or call sales on 1800 102 1822.

Ready-to-register DLT templates for banks, NBFCs and insurers

Each changing value carries a typed tag. Write amounts without commas so they pass {#numeric#}, and register every link and helpline number as a CTA first.

Message (what the customer sees)	DLT template (typed-variable format)	Suffix
482913 is the OTP for your ABC Bank transaction of Rs.2500 at XYZ Store. Valid for 5 mins. Never share your OTP. - ABC Bank	{#numeric#} is the OTP for your ABC Bank transaction of Rs.{#numeric#} at {#alphanumeric#}. Valid for {#numeric#} mins. Never share your OTP. - ABC Bank	-T
A/c XX4821 debited Rs.2500 on 02/10 via UPI Ref 512345678901. Not you? Call 18001234567 - ABC Bank	A/c XX{#numeric#} debited Rs.{#numeric#} on {#numeric#}/{#numeric#} via UPI Ref {#numeric#}. Not you? Call {#cbn#} - ABC Bank	-T
Dear Rahul, EMI of Rs.4500 for loan LN20931 is due on 05/11. Pay at https://abcfin.in/pay - ABC Finance	Dear {#alphanumeric#}, EMI of Rs.{#numeric#} for loan {#alphanumeric#} is due on {#numeric#}/{#numeric#}. Pay at {#url#} - ABC Finance	-S
Your KYC for a/c XX4821 is due for update. Update it in the ABC Bank app: https://abcbank.in/kyc - ABC Bank	Your KYC for a/c XX{#numeric#} is due for update. Update it in the ABC Bank app: {#url#} - ABC Bank	-S
Premium of Rs.12500 for policy PL778812 is due on 15/11. Renew at https://abcins.in/renew or call 18001234567 - ABC Insurance	Premium of Rs.{#numeric#} for policy {#alphanumeric#} is due on {#numeric#}/{#numeric#}. Renew at {#url#} or call {#cbn#} - ABC Insurance	-S
You are pre-approved for a personal loan up to Rs.200000. Apply: https://abcfin.in/pl T&C apply. To opt out reply STOP - ABC Finance	You are pre-approved for a personal loan up to Rs.{#numeric#}. Apply: {#url#} T&C apply. To opt out reply STOP - ABC Finance	-P

Keep offers out of -T and -S templates, or they will be treated as promotional. More examples on DLT sample templates; step-by-step approval on DLT template registration.

Banking and NBFC customer journey on SMSGatewayHub

The right channel and category at each stage of the customer lifecycle.

Acquire
Capture loan or card interest by missed call or two-way SMS keyword, and promote to consented numbers on -P SMS or RCS.
Onboard & KYC
Verify the mobile number with a -T OTP, then collect KYC documents and video-KYC slots over WhatsApp utility templates.
Activate & disburse
Confirm account opening, card dispatch and loan disbursal on -S SMS, with sanction letters and welcome kits by bulk email.
Transact
Send payment OTPs and debit or UPI alerts on -T over HTTP API or SMPP, with voice or WhatsApp fallback for OTPs.
Collect
Run EMI reminders and bounce notices on -S SMS, WhatsApp and regional-language voice calls.
Retain & cross-sell
Renewal reminders on -S; top-up, card upgrade and insurance offers only on -P with consent, on SMS, RCS or WhatsApp marketing.

Banking and NBFC messaging resource map

Where to go next on SMSGatewayHub, grouped by what your team needs to do.

I want to…	Go to
Check prices and estimate cost	All pricing · Transactional SMS pricing · SMS cost calculator
Get DLT-compliant	DLT registration · Sample templates · Sender ID & suffixes · TRAI regulations
Integrate core banking, LOS or app	Developer API docs · SMPP connectivity · HTTPS API
Secure OTP for login and payments	OTP SMS service · Enterprise OTP API · Missed call OTP · OTP API for fintech startups
Fix delivery problems	DLT error codes · Live delivery reports
See other industries	E-commerce · Hospitals · Education · Logistics · BFSI case study

SMS vs WhatsApp vs RCS for banks and NBFCs: which to use when

SMS stays the system of record. It reaches every mobile number, needs no app or data connection and, on -T and -S headers, reaches DND numbers at any hour. Use it for OTPs, debit and UPI alerts and any reminder your customer must not miss, and keep it as the fallback for every other channel.

WhatsApp suits conversations and documents. Use WhatsApp Business API utility templates for KYC document collection, statements and EMI reminders where the customer has opted in, and authentication templates as an OTP alternative. Meta bills each delivered template by category; see WhatsApp pricing.

RCS suits branded, interactive journeys. RCS messaging shows a verified brand name with rich cards and buttons, useful for card upgrades, loan top-ups and policy renewals, with automatic SMS failover where RCS is not available. Read RCS for banking, NBFC and insurance.

Most lenders and insurers use all three: SMS for security and compliance-critical messages, WhatsApp for service, RCS for engagement. Run them from one SMSGatewayHub account on Pay As You Go pricing.

Related Services & Guides

Banking & Financial Services Case Study →

How BFSI teams use SMS, OTP and two-way messaging.

OTP SMS Service →

Priority routes for login and payment OTPs.

Transactional SMS →

-T and -S alerts to every number, 24/7.

Service Explicit vs Service Implicit SMS →

Why EMI reminders belong on -S.

Trust Center →

ISO 27001, ISO 9001:2015, SOC 2 and VAPT.

Bulk SMS for E-commerce →

Payment, order and delivery messaging for online stores.

Frequently Asked Questions

Which SMS route should NBFCs use for EMI reminders?

EMI due reminders and bounce notices to existing borrowers are service messages, so they go on a service template with a -S header suffix. They are not service explicit, which has been merged into promotional. On SMSGatewayHub these -S messages reach DND numbers 24/7, as long as the template carries no offer.

Can banks send OTP SMS to DND numbers?

Yes. OTPs and debit alerts triggered by the customer's own transaction are transactional messages with a -T suffix, delivered to all numbers including DND at any time. SMSGatewayHub sends them on priority transactional routes through the OTP SMS service, HTTP API or SMPP.

Is SMS OTP still allowed for digital payments under RBI's new authentication rules?

Yes. RBI's latest directions require at least two authentication factors for digital payments, with one factor generated dynamically for the transaction, and SMS OTP remains a permitted factor. Issuers can add risk-based checks and other factors alongside it, and SMSGatewayHub can deliver the OTP by SMS with WhatsApp or voice fallback.

Do banks and NBFCs need 1600-series numbers for SMS?

No. The 1600 series applies to service and transactional voice calls from regulated financial entities, while promotional calls use the 140 series. Bank and NBFC SMS continues to use DLT-registered sender IDs with -T, -S or -P suffixes.

How can fintech apps send pre-approved loan offers by SMS?

Any offer, including a pre-approved loan or card upgrade to an existing customer, is promotional and carries a -P suffix. It goes only to consented or non-DND numbers, within the promotional time window, with an opt-out. SMSGatewayHub lets you run the same campaign on promotional SMS, RCS or WhatsApp marketing templates.

Can a bank include a payment or KYC link in an SMS?

Yes, but only if the link is registered as a CTA on DLT and placed in a {#url#} variable, with app links in {#urlott#} and helpline numbers in {#cbn#}. Unregistered links and generic public short links are rejected at scrubbing. The SMSGatewayHub DLT team can whitelist your CTAs and map template IDs.

Which security certifications does SMSGatewayHub hold for BFSI vendor assessments?

SMSGatewayHub is ISO 27001, ISO 9001:2015 and SOC 2 certified, VAPT tested and TRAI DLT registered. Supporting documents are on the Trust Center at https://www.smsgatewayhub.com/trust-center for your information-security and vendor risk teams.

What does bulk SMS for banks and NBFCs cost?

SMSGatewayHub uses Pay As You Go pricing: you buy credits as needed and pay only for delivered SMS; exact rates depend on volume and route, see https://www.smsgatewayhub.com/pricing or talk to sales on 1800 102 1822. 18% GST applies extra.

Run compliant BFSI messaging from one account

Get 1,000 free SMS credits, DLT help for -T, -S and -P templates, and SMPP or API access for your core systems.

Start Free Trial ☎ 1800 102 1822

Simply Restart Your SMS Marketing Journey!