The “Transactional, Promotional & OTP SMS Service Providers: India 2026 Guide” is a comprehensive industry overview designed to help businesses navigate the rapidly evolving SMS communications landscape in India. It explains the three main types of SMS messaging—promotional, transactional, and OTP (one-time password)—and highlights how each serves different business needs, costs, and ... https://crm.smsgatewayhub.com/knowledge-base/article/transactional-promotional-otp-sms-service-providers-india-2026-guide