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📱 Bulk SMS Service

India's Most Reliable
Bulk SMS Platform

Send millions of SMS instantly with 90%+ open rates. Transactional, Promotional & OTP SMS with 99.9% uptime, real-time delivery reports, and DLT compliance.

Start Free — Get ₹10 Credits ⚡ Book a Demo
SMS Solutions

Reach Your Audience Instantly
with Bulk SMS

Deliver fast, reliable, and high-impact messages directly to your customers. One platform for all your SMS needs.

11:15
JD
JD-658719
Promotional SMS
Today, 11:15 AM
Get 20% OFF on all plans this week! Use code NESARK20 at checkout. Valid till Sunday only.
Shop: www.nesark.com
To stop msgs reply STOP. Regards - NESARK
Delivered ✓
📢 Non-DND · 10AM–9PM only
Reply...
📢 Promotional SMS

Grow Your Business with
SMS Marketing

Reach potential customers with attractive offers, discounts, and promotions. Send bulk promotional SMS for product launches, offer details, general awareness, and event alerts on special occasions.

  • Sent to Non-DND numbers only
  • Allowed between 10 AM – 9 PM
  • Numeric 6-digit Sender ID
  • Ideal for offers, launches & campaigns
🔔 Transactional SMS

Instant Delivery for
Critical Updates

Send order confirmations, payment alerts, delivery updates, and other critical information with ease. Our cost-effective gateways serve customers 24×7 across India and globally.

  • Works on DND & Non-DND numbers
  • Delivery 24×7 round the clock
  • 6-alphabet Sender ID (e.g., NESARK)
  • Ideal for orders, alerts & banking
11:15
‹
AD
AD-NESARK
Transactional SMS
Today, 11:15 AM
Dear Ravi, We've received your payment of Rs.2,500 for your Bulk SMS plan. Your wallet is now activated. Login: bulksms.nesark.com Thank You – NESARK
11:15 AM ✓✓
Delivered
✅ DND & Non-DND · 24×7
Reply...
11:15
‹
TM
TM-NESARK
OTP / Service SMS
Today, 11:15 AM
Your OTP for login is 847291. Valid for 10 minutes. Do not share with anyone. - NESARK
11:15 AM ✓✓
Delivered
🔐 DND & Non-DND · Instant
Reply...
🔐 OTP / Service SMS

Secure & Instant
OTP Delivery

Reliable, fast, and secure OTP delivery for user authentication. Designed for securing online transactions, authenticating users, and protecting your customers' data.

  • Verifying user accounts with OTP/2FA
  • Resetting passwords securely
  • Confirming online transactions
  • Works on DND & Non-DND 24×7
Personalization

Send Personalized SMS at Scale

Go beyond bulk. Add customer names, order IDs, or any custom variable — every recipient gets a message that feels written just for them.

Message Template
Hi {Name}, your order {OrderID} has been shipped! Track: nesark.com/track
{Name}
Phone Number
Ravi Sharma
+91-98765xxxx1
Priya Mehta
+91-91234xxxx2
Arjun Patel
+91-87654xxxx3
Sneha Gupta
+91-76543xxxx4
Auto-personalized ↓
Hi Ravi Sharma, your order #ORD-4521 has been shipped! Track: nesark.com/track
Delivered ✓✓
Hi Priya Mehta, your order #ORD-4522 has been shipped! Track: nesark.com/track
Delivered ✓✓
👤
Dynamic Variables
Use {Name}, {OrderID}, {Amount} and any custom field from your contact list
📋
Upload Your Contact List
Import Excel or CSV with custom columns — we auto-map them to your message template instantly
⚡
Millions in One Click
Send unique personalized messages to unlimited contacts simultaneously — delivered within seconds
📈
Higher Engagement Rate
Personalized messages see 3x higher open rates and click-throughs compared to generic bulk SMS
🔗 Link Shortener

Shorten URLs &
Track Every Click

Convert long URLs into compact short links directly inside your SMS campaign. Every link includes your DLT-approved SMS header — ensuring delivery compliance and full click tracking.

⚠️
Header Required in Short Link
As per TRAI rules, your SMS header must be embedded in the short URL. Links without a valid header will cause SMS delivery failure. Nesark automatically handles this for you.
📊
Click Analytics
Track every click — mobile number, browser, device and IP address
✅
Header Auto-Embedded
Your DLT sender header is automatically added to every short link — zero manual effort
✂️
Save SMS Characters
Short links use ~22 chars vs 80+ for full URLs — fit more content in every message
Insert Short Link
URL Name *
Festival Sale Campaign
Triggered URL *
https://www.nesark.com/offers/festival-sale-2025
SMS Header *
NESARK Required ✓
Protocol *
https
Short Domain *
5az.me
Generated Short URL
https://5az.me/NESARK/{SHORT}
✓ Header NESARK embedded — compliant & trackable
Close
Insert Link ↗
Why Bulk SMS?

Reach Thousands of Customers
in Seconds

In today's competitive market, reaching your customers instantly is key. Nesark's Bulk SMS Marketing service helps you connect with your audience in real time — straight to their mobile phones. Whether it's promotions, updates, alerts, or OTPs, our SMS service ensures your message is delivered fast and reliably.

  • 90%+ open rate vs 20% for emails
  • Instant delivery to any mobile in India
  • Reach DND & Non-DND numbers via correct route
  • Unicode support — send in any Indian language
  • Unlimited Sender IDs & templates — completely free
  • Schedule campaigns for any future date & time
  • Upload unlimited contacts via CSV
  • Cost-effective — starting at ₹2,500 for 10,000 SMS
📊 SMS Route Comparison
Feature Transactional Promotional
DND Numbers✓ Allowed✗ Not Allowed
Delivery Time24×710AM – 9PM
Sender ID6 Alpha6 Numeric
Use CaseOTP, AlertsOffers, Promos
DLT Required✓ Yes✓ Yes
Platform Features

Everything You Need in
One Dashboard

A powerful, user-friendly interface built for businesses of all sizes — from startups to enterprises.

Bulk Upload Contacts
Upload unlimited contacts via CSV/Excel. Send bulk SMS to your entire customer database in one click with no limit on recipients.
Schedule Campaigns
Plan your campaigns in advance. Use the "Send Later" feature to schedule SMS delivery for any future date and time automatically.
Real-Time Reports
Access in-depth delivery analytics. Track sent, delivered, failed, and pending messages in real-time from your dashboard.
Developer API
REST API with code samples and documentation. Integrate SMS into any app or workflow in minutes. Supports GET & POST methods.
Unicode / Multilingual
Send SMS in Hindi, Tamil, Telugu, Bengali, Marathi and all major Indian languages using our built-in Unicode support.
Secure & TRAI Compliant
Fully TRAI & DLT compliant. Your customer data is protected with enterprise-grade security. We assist with DLT registration too.
Use Cases

Who Uses Bulk SMS?

Trusted by businesses across every industry in India for critical customer communication.

🏦

Banking & Finance

Transaction alerts, OTP, balance updates, loan reminders, account activity notifications

🛒

E-Commerce

Order confirmations, shipping updates, delivery alerts, abandoned cart recovery campaigns

🏥

Healthcare

Appointment reminders, health alerts, prescription updates, lab report notifications

🎓

Education

Exam schedules, fee reminders, result alerts, event announcements for students & parents

🏪

Retail & FMCG

Sale announcements, loyalty rewards, seasonal offers, new product launch campaigns

🚗

Logistics

Shipment tracking updates, delivery confirmations, driver dispatch notifications

🏘️

Real Estate

Property inquiry follow-ups, new launch alerts, site visit reminders, EMI notifications

⚡

Utilities

Bill payment reminders, outage alerts, service updates, renewal notifications

Simple Process

How to Send Bulk SMS

Get your first SMS campaign live in minutes.

1
Sign Up & Get Credits
Create your free account and receive ₹10 credits instantly on signup — no card needed
2
Complete DLT
Register your Sender ID & templates on DLT portal (mandatory per TRAI). We assist you
3
Upload Contacts
Import your customer database via CSV or add contacts manually to the panel
4
Send & Track
Launch your campaign and monitor delivery in real-time from your dashboard
Start Sending Now →
FAQ

Frequently Asked Questions

Everything you need to know about Nesark's Bulk SMS service in India.

A Sender ID is a 6-alphabet identity that represents your company or product (e.g., NESARK). It is compulsory to use in Transactional SMS. You can add unlimited Sender IDs free of charge on the Nesark platform.
Promotional SMS are sent to Non-DND numbers only for marketing purposes, allowed between 10 AM – 9 PM. Transactional SMS are delivered on both DND and Non-DND numbers 24×7 for OTPs, alerts, and critical service information.
Nesark offers Bulk SMS starting at ₹2,500 for 10,000 SMS (25 paise per SMS). Growth plan at ₹5,000 for 25,000 SMS and Enterprise at ₹9,000 for 50,000 SMS. All prices are exclusive of 18% GST. View full plans at nesark.com/pricing-plan.
Yes, DLT registration is mandatory for all businesses sending bulk SMS in India as per TRAI guidelines. Nesark provides free DLT registration assistance and a complete step-by-step guide to help you comply quickly.
There is no cap on the number of recipients per campaign. You can upload unlimited contacts via CSV and send bulk SMS to your entire customer database in one click.
Yes! Using the Transactional or Service Implicit route you can send SMS to DND numbers 24×7. The Promotional route does not allow delivery to DND numbers as per TRAI regulations.
You can use up to 160 characters per SMS credit for English. Unicode messages (regional Indian languages) support 70 characters per credit. Longer messages are supported and billed per additional credit used.
Yes! Nesark has built-in Unicode support so you can send SMS in Hindi, Tamil, Telugu, Bengali, Marathi, Gujarati, and all major Indian languages directly from the dashboard.
Yes, use the "Send Later" option while creating your campaign to schedule SMS delivery for any future date and time. Campaigns run automatically without any manual intervention.
Absolutely! Nesark provides a developer-friendly REST API with complete documentation and code samples. It's easy to integrate SMS into any application, website, CRM, or business software. Both GET and POST methods are supported.
Yes, your customer data is fully protected with enterprise-grade security. Nesark is fully TRAI & DLT compliant and follows strict data privacy practices. Your database is never shared with third parties.

Ready to Reach Your Customers Instantly?

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