TRAI & DLT Compliant 4.8/5 Rated
The Guru SMS Blog

Messaging Insights & Guides

Practical advice on bulk SMS, WhatsApp marketing, DLT compliance and growing your business with messaging.

Latest Article 20 Jul 2026 2 min read

Why Small Businesses Should Invest in SMS API Integration

An SMS API turns your billing software, website or CRM into an automatic messaging engine — OTPs, order updates and reminders sent without anyone lifting a finger. Here is why it pays off fast for small businesses.

Read Article
20 Jul 2026 2 min

Top 5 Industries Benefiting from Bulk WhatsApp Marketing

From boutiques broadcasting new collections to schools sending fee circulars, these five industries are getting outsized results from bulk W…

Read article
20 Jul 2026 2 min

Voice Call Campaigns: The Human Touch in Digital Marketing

A recorded voice message in the listener's own language reaches every phone in India — no smartphone, no internet, no reading required. Why …

Read article
14 Jul 2026 5 min

WhatsApp Chatbot Use Cases for Small Businesses in India

Discover practical WhatsApp chatbot use cases for small businesses in India, from lead qualification and order tracking to FAQs, appointment…

Read article
07 Jul 2026 5 min

How to Get the WhatsApp Green Tick in India: Requirements, Process and Tips

A practical guide to earning the WhatsApp green tick verified badge in India, covering eligibility, the application process, useful tips and…

Read article
30 Jun 2026 5 min

WhatsApp Business API Pricing in India: How Conversation-Based Pricing Works

Understand how WhatsApp Business API conversation-based pricing works in India across marketing, utility, authentication and service categor…

Read article
23 Jun 2026 5 min

SMS Delivery Rates Explained: Why Messages Fail and How to Fix It

Why SMS messages fail in India including DND, wrong routes, template mismatch and operator filtering, plus how to fix them and what 98% deli…

Read article
16 Jun 2026 5 min

SMS Sender ID and DLT Header Explained: A Complete Guide

What an SMS sender ID or DLT header is, how to register one in India, the rules that govern it, and examples for different types of business…

Read article
11 Jun 2026 2 min

Bulk SMS vs WhatsApp Marketing: Which Channel Should Your Business Use?

SMS reaches every phone instantly; WhatsApp carries images, PDFs and conversations. Here is an honest comparison — costs, reach, engagement …

Read article
11 Jun 2026 2 min

DLT Registration in Odisha: Step-by-Step Guide for Businesses (2026)

Every business sending SMS in India needs DLT registration. Here is the complete process — documents, portals, sender IDs and template appro…

Read article
09 Jun 2026 5 min

Promotional vs Transactional SMS in India: Key Differences Explained

Understand the difference between promotional and transactional SMS in India including DLT routes, time-window rules, sender ID types and re…

Read article
02 Jun 2026 5 min

How to Choose the Best Bulk SMS Service Provider in India

A practical, India-specific checklist for choosing a bulk SMS provider in 2026 covering DLT support, direct operator routes, delivery rates,…

Read article

Have a campaign in mind? Talk to us.

Fill this in — our team responds within a few working hours.

Your details are safe with us. No spam, ever.

Ready to reach every customer’s phone?

Talk to a messaging expert today — free demo, free DLT guidance, instant activation.