Bulk SMS
Reach every mobile phone in Kolkata, with no app or internet needed.
- Promotional, transactional and OTP routes
- Help with DLT sender ID and templates
- Messages in Bengali and English (Unicode)
Capital of West Bengal
Bulk SMS, WhatsApp & RCS Service in Kolkata
Kolkata is eastern India’s commercial centre, with banks, wholesale markets, schools and hospitals serving the whole region. Businesses here send alerts, offers and reminders in Bengali, Hindi and English with Bulk SMS India.
- 15,000+ businesses
- Since 2016
- DLT-ready
- Live delivery reports
Three channels for businesses in Kolkata
Send bulk SMS, WhatsApp and RCS messages from one account, with one dashboard and one support team.
Rich messages with images, buttons and two-way replies.
- WhatsApp Business API with green-tick support
- Order, booking and payment updates
- Chat with customers in Kolkata from one inbox
RCS Messaging
Branded, verified messages in the default Android inbox.
- Images, carousels and action buttons
- Verified sender name and logo
- SMS fallback when RCS is not available
How businesses in Kolkata use Bulk SMS India
Popular ways companies in Kolkata keep customers informed.
Banking & finance
Transaction alerts, EMI and premium reminders, KYC and loan-status updates.
Retail & wholesale
Festive offers, new arrivals, loyalty points and store-opening campaigns.
Schools & coaching
Admissions, fee reminders, attendance, exam schedules and results.
Hospitals & clinics
Appointment reminders, lab-report alerts, OPD tokens and health-camp notices.
Local languages
Send messages in Bengali, Hindi and English
Customers in Kolkata read and respond faster when the message is in their own language. Write in Bengali or any Indian language and we send it as Unicode SMS, or as a WhatsApp or RCS message with no length worries.
- GSM (English) SMS: 160 characters, or 153 per part
- Unicode SMS (Bengali, Hindi and other Indian scripts): 70 characters, or 67 per part
- Each part is one SMS credit, so check length before a big campaign
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0Characters
1SMS credits
160Left in part
Why Kolkata businesses choose us
Real-time delivery
Messages go out in real time with a live report for every number.
DLT-ready
Help with entity, sender ID and template approval on DLT.
APIs and plugins
SMS and WhatsApp APIs, WooCommerce, Google Sheets and more.
Real people
Support on phone, WhatsApp and email since 2016.
Start sending in Kolkata in three steps
- Create your account
Sign up online in a few minutes. Get started
- Complete DLT registration
Register your business, sender ID and templates. DLT guide
- Send your first campaign
Upload numbers, pick SMS, WhatsApp or RCS and track delivery live.
Bulk SMS in Kolkata: common questions
Do you provide bulk SMS service in Kolkata?
Yes. Bulk SMS India is an online platform, so businesses in Kolkata and across West Bengal can sign up, send messages and see delivery reports from anywhere. Our team supports you on phone, WhatsApp and email from our office in Yamuna Nagar, Haryana.
Can I send WhatsApp and RCS messages to customers in Kolkata?
Yes. Along with bulk SMS, you can send WhatsApp Business API messages and RCS rich messages to customers in Kolkata from the same account, and use SMS as a fallback for important alerts.
Can I send SMS in Bengali?
Yes. Messages in Bengali and Hindi are sent as Unicode SMS. A Unicode SMS holds up to 70 characters, or 67 per part when the message is longer. Use our free SMS character counter to check the length before you send.
Do I need DLT registration to send bulk SMS?
Yes. TRAI rules require every business sending commercial SMS in India to register its entity, sender IDs (headers) and message templates on a DLT platform. Our team helps you complete DLT registration and get templates approved.
How much does bulk SMS cost in Kolkata?
Our prices are the same across India, including Kolkata. The rate depends on the route (promotional, transactional or OTP) and the volume you buy. Contact our team or WhatsApp us for a quote.
How fast are messages delivered?
Messages are submitted to operators in real time, and the delivery report for each number appears live in your dashboard, so you can see exactly when each message was delivered.
Bulk SMS in other cities of East India
Grow your business in Kolkata
Start with bulk SMS, add WhatsApp and RCS when you are ready. Our team helps you set up.