The period October to December is referred to as Northeast Monsoonseason over peninsular India. Earlier this period was also referred to as "Post-Monsoon Season" or "Retreating southwest Monsoon Season".
The southwestern summer monsoons occur from July through September.
South west monsoon brings rain during summer whereas north east monsoon brings rain during winter direction of sw monsoon is sea to land so it brings huge amount of rainfall throughout india direction of ne monsoon is land to sea so it does not contain moisture and brings dryness and coldness after blowing through bay of bengal it brings rainfall in tamil nadu the am,t of rainfall from this branch is low and it doesnt bring rain throughout india