Diwali 2025 Date Chennai. Learn about the history, significance, and traditions of diwali, and find out the timings and dates of dhanteras, naraka chaturdashi,. According to the ancient calendar, diwali is observed on amavasya (or new moon) — the 15th day — of the month of kartik, every year.

Find out the dates of public holidays in tamil nadu for the year 2025, including festivals, bank closures and national events. In certain cities, however, diwali may be observed on november.