This publication by Indian Meteorological Department, Pune contains studies with latest data on various aspects of important weather / climate systems viz. Monsoons, Cyclone, Drought, Floods and observational weather / climate mechanism in India.

The 2009 southwest monsoon recorded the third highest deficient
all India southwest monsoon season rainfall (-22% of LPA) during
the period 1901-2009. All the monsoon months except July
recorded large deficient rainfall. Region wise, except south
Peninsula, all other homogeneous regions recorded much below
normal rainfall. Activity of depression was below normal with