Rainy day is one, the day which receives > _______ mm of rainfall

✅ EXPLANATION: In India, a rainy day is defined as a day that has more than 2.5 mm of rainfall. This is the standard definition used by the India Meteorological Department (IMD).

📌Other Options and Explanations:
🔹 25 mm is the minimum amount of rainfall that is considered significant for agricultural purposes.
🔹 250 mm is the average amount of rainfall in India during a year.
🔹 5.0 mm of rainfall is the amount that is considered as a light shower.