Seasons of Tropical and Sub-tropical / warmer region as in India
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India Meteorological Department has divided four seasons as under;

1. Monsoon/ kharif: (June – September)
2. Post Monsoon: (October – November)
3. Winter/ rabi : (December to February).
4. Summer / Zaid: (March – May)

Monsoon/ kharif season [June – September]

• In India, southwest monsoon is the major contributor of rain fall.
• It starts on June 1st in Kerala and reaches Delhi by 1st week of July.
• The monsoon withdraws at the month of September.
• All over India, except Tamilnadu and coastal Andhra Pradesh receive rainfall in this season
• More than 60% of the total food production comes from this season.
• Rice is a predominant crop in this season.
• 90% of total rice production comes from this season
• Major oil seed production comes from this season
• Crops including cereals, millets, pulses, etc. are also cultivated.

Post monsoon season [October-November]

• This is the period after the monsoon season is over.
• This season is also called as retreating monsoon gives rainfall to Tamilnadu and coastal AP
• In North India, with residual soil moisture crops like wheat, mustard, bengal gram and safflower are grown
• But in Tamilnadu and AP, most of the crops are grown during in this season