Which one of the following places has the lowest rain fall during the South – West Monsoon?

Kolkata
Mangalore
Chennai
Delhi

The correct answer is (d), Delhi.

The South-West Monsoon is a seasonal wind pattern that brings heavy rains to India and other parts of South Asia. The monsoon season typically runs from June to September, and the amount of rainfall varies from place to place.

Kolkata, Mangalore, and Chennai are all located on the coast of India, and they receive a significant amount of rainfall during the monsoon season. Delhi, on the other hand, is located in the northern part of India, and it receives much less rainfall during the monsoon season.

In fact, Delhi is one of the driest cities in India. The average annual rainfall in Delhi is only about 700 mm, while the average annual rainfall in Kolkata is about 1,500 mm, the average annual rainfall in Mangalore is about 3,000 mm, and the average annual rainfall in Chennai is about 1,200 mm.

The reason why Delhi receives less rainfall than other parts of India is because it is located in a rain shadow. A rain shadow is an area that receives less rainfall than the surrounding areas because of the presence of mountains. In the case of Delhi, the Himalayas block the moisture-laden winds from the Bay of Bengal, which results in less rainfall in Delhi.