bulk sms service provider chennai | Ratsms in Chennai, Tamil Nadu, India

RAT SMS, plug your audience directly into their palms through powerful campaign messaging—promos, offers, alerts, transactional info, and OTPs. High-speed delivery (200–500 msgs/sec), Unicode compatibility, and personalization (name, birthday, offers) boost engagement. The platform supports timed drops and campaigns to DND and non‑DND numbers and provides API-driven automation paired with detailed analytics. No expiry on SMS credits and fr