India's Trusted Bulk SMS Service Provider & SMS Gateway Company

Bulk SMS service in India is the process of sending large volumes of text messages to multiple mobile numbers simultaneously through an SMS gateway provider. It is governed by TRAI regulations and requires DLT (Distributed Ledger Technology) registration. Bulk SMS is categorised into transactional SMS (alerts, OTPs, notifications) and promotional SMS (marketing campaigns). SpringEdge provides both types with full DLT compliance.

Bulk SMS pricing in India typically ranges from ₹0.10 to ₹0.20 per SMS depending on volume, type (transactional or promotional), and provider. SpringEdge offers competitive pay-as-you-go pricing starting at ₹0.16 per SMS for 25,000-50,000 messages, ₹0.15 per SMS for 50,000-1,00,000 messages, and ₹0.14 per SMS for volumes above 1,00,000. Custom pricing is available for enterprises sending 10 lakh+ messages monthly.

Yes, DLT (Distributed Ledger Technology) registration is mandatory for every business that sends bulk SMS in India. As per TRAI regulations, businesses must register as a Principal Entity on a DLT platform (Jio, Airtel, Vodafone Idea, or Smartping), submit company KYC documents, register sender IDs, and get message templates approved. Without DLT registration, SMS messages will be blocked by telecom operators. SpringEdge handles DLT compliance automatically once you provide your entity ID and approved templates.

Transactional SMS are informational messages triggered by user actions — such as OTP codes, order confirmations, payment alerts, and appointment reminders. They can be delivered 24/7 including to DND-registered numbers. Promotional SMS are marketing messages used for offers, discounts, and campaigns. As per TRAI regulations, promotional SMS can only be sent between 9 AM and 9 PM and are filtered against the NDNC registry. Both types require approved DLT templates before sending.

SpringEdge delivers most SMS messages within 3 to 5 seconds of the API call. For OTP verification messages, delivery typically happens in under 3 seconds — among the fastest in the industry. We use intelligent routing that automatically selects the fastest delivery path across all Indian telecom operators (Jio, Airtel, Vodafone Idea, BSNL/MTNL) and provide real-time delivery reports via webhooks.

Yes, SpringEdge fully supports Unicode SMS in Hindi, Tamil, Telugu, Bengali, Marathi, Gujarati, Kannada, Malayalam, Punjabi, and any other Indian language. Note that Unicode messages use 70 characters per SMS credit instead of the standard 160 characters for English. Your DLT-approved templates must also be registered in the same language you intend to send.

Yes, SpringEdge offers free trial credits when you create a new account. You can test all our SMS services — transactional SMS, promotional SMS, OTP verification, and the SMS API — without any upfront payment or credit card. The trial environment uses the same API endpoints as production, so there is no code change needed when you switch to live messaging.

SpringEdge provides a RESTful HTTP API that integrates with any programming language. Make a POST request to https://api.springedge.com/v1/sms/send with your API key as a Bearer token and a JSON payload containing the recipient number, sender ID, message, and type. We provide ready-to-use code examples and SDKs for PHP, Python, Java, Node.js, Ruby, Go, and C#/.NET. Visit our Developer API page for documentation.

SpringEdge Technologies Private Limited is headquartered in Bangalore, India. Our office is located at #198, CMH Road, 2nd Floor, Indiranagar, Bangalore, Karnataka 560038. We have been providing bulk SMS services across India since 2015. You can reach our support team at contact@springedge.com or +91 80-50014114 during business hours.