question_answer

Why does the rainfall decrease from the east to west in Northern India? Give reasons as to why:

Answer:

The rainfall decreases from east to west in Northern India because:

(a) The Bay of Bengal branch of the south-west monsoon reaches Assam in first week of June and gives heavy rainfall.

(b) On reaching the Eastern Himalayas, it is deflected towards the west over the Gangetic plains.

(c) The Bay of Bengal branch starts moving from East to West and the rainfall goes on decreasing from East to West in the northern plains.

(d) Kolkata receives about 120 cm, Patna 102 cm, Allahabad 91 cm and Delhi 56 cm.