most imp points of advancing monsoons

There are four main seasons in India, they are : The cold weather season, The hot weather season, The advancing monsoon and The retreating monsoon.

The features of advancing monsoon season are:

The low-pressure condition over the northern plains intensifies at this time.
It attracts the trade winds from the southern hemisphere.
These south-east trade winds cross the equator and blow in a south-westerly direction to enter the Indian peninsula as the south-west monsoon.
These winds bring abundant moisture to the subcontinent.
The monsoon winds cover the country in about a month; barring the extreme north-west.
The windward side of the Western Ghats receives very heavy rainfall, early in the rainy season.
The Deccan Plateau and parts of Madhya Pradesh also receive some rain, in spite of lying in the rain shadow area.
The north-eastern part of the country receives the maximum rainfall of this season.
Mawsynram (Meghalaya) receives the highest average rainfall in the world.
Rainfall in the Ganga valley decreases from east to west.
Rajasthan and parts of Gujarat get scanty rainfall.