Why does the rainfall decrease in the east as compared to West in the northern India?

Question: Why does the rainfall decrease in the east as compared to West in the northern  India?

Rainfall decreases from the east to the west of northern india due to the reason for reducing the monsoon humidity of the winds. The maxium rainfall during the monson period but moister winds of the Bay of bengal moves further island. They move towards west their moisture contains tends to reduce with subsequent rains. Hence the rainfall decreases from east to west in northern India.