Kalbaisakhi, the violent evening thunderstorms of April and May, are a feature of which part of India?

Explanation

1. 01

   Kalbaisakhi, also called nor'westers, strike West Bengal, Odisha and Assam in the hot season.

2. 02

   The name means 'calamity of Baisakh', the month in which they come. In Assam the same storms are called tea showers because they help the tea crop.