Key September 2025 Days & Festivals 🇮🇳

Discover the list of important national and international days in September 2025 that matter for India 🇮🇳. From Teachers’ Day, Engineers’ Day, Hindi Diwas, Onam, Ganesh Visarjan, Navratri to global observances like World Literacy Day, Ozone Day, World Tourism Day, World Heart Day, here’s a quick one-liner guide for students, competitive exam prep, and general awareness. 📅✨