Top 10 OTP SMS Companies in India

Choosing the right OTP SMS provider can make a big difference to your results. To make the search easier, we have put together 10 well-known OTP SMS companies serving businesses in India, with a short overview of each.

How we put this list together

We looked at each provider's core offering for OTP SMS, availability for Indian businesses, product breadth, integrations and support options. The list is in no particular order after our own entry. Descriptions are short summaries based on publicly available information — always check current features and pricing directly with each provider.

Disclosure: this article is published by Buddy Infotech. We list our own service first; the other companies are included to give you a broad, fair view of the market. We have no affiliation with them.

The list: 10 OTP SMS companies

1 Buddy Infotech Our pick

Priority-routed one-time passwords for logins, sign-ups and payments. WhatsApp, SMS, RCS, OTP, voice, IVR, AI chatbots, business software and digital marketing from Greater Noida, Delhi NCR, with online onboarding across India and 24×7 support.

Priority Route: Dedicated transactional route, 24×7 including DND numbers.
Smart Failover: Automatic retry over alternate routes or voice OTP.
Generate & Verify API: Ready endpoints so you never store OTPs yourself.
Expiry & Attempts: Configurable OTP length, validity and retry limits.

See OTP SMS by Buddy Infotech · Book a free demo

2 Gupshup

Conversational messaging platform offering WhatsApp, SMS and RCS APIs along with chatbot-building tools.

3 Route Mobile

CPaaS provider offering SMS, WhatsApp, RCS and voice messaging solutions for enterprises.

4 Tanla Platforms (Karix)

Communications platform company whose Karix brand provides SMS, RCS and WhatsApp messaging for enterprises.

5 Kaleyra

Cloud communications provider for SMS, voice and WhatsApp messaging.

6 Twilio

Global cloud communications platform with APIs for SMS, voice, WhatsApp and user verification.

7 Infobip

Global omnichannel communications platform covering SMS, WhatsApp, RCS and voice.

8 Sinch

Global CPaaS company offering messaging, voice and verification APIs.

9 MSG91

Indian communications platform for SMS, OTP, WhatsApp, email and voice.

10 Exotel

Customer engagement platform offering cloud telephony, IVR, SMS and WhatsApp.

How to choose the right OTP SMS provider

Compliance (TRAI DLT, official WhatsApp/RCS onboarding)
Delivery speed and reliability
Rich features: templates, automation, chatbots
APIs, webhooks and integrations
Reports and analytics
Responsive local support and clear pricing

Why consider Buddy Infotech?

Buddy Infotech offers OTP SMS with fully online onboarding anywhere in India, 24×7 human support and one partner for messaging, software and digital marketing. Explore OTP SMS or request a free demo.

Frequently asked questions

Which is the best OTP SMS company in India?

The best choice depends on your volume, use case, budget and support needs. Shortlist two or three providers from this list, take demos and compare delivery, features and total cost.

How do I compare OTP SMS providers?

Compare compliance, reliability, features, integrations, reporting, support quality and transparent pricing. Ask each provider for a demo with your real use case.

Is Buddy Infotech included because it published this list?

Yes — this article is published by Buddy Infotech, and we list our own service first. The other providers are included to give you a broad view of the market.