'Kaal Baisakh' is the name of localized thunderstorms, associated with violent winds, torrential downpours, often accompanied by hails. They occur in which of the following regions of India?
Explanation:
'Kaal Baisakhi' (also known as Nor'westers) are severe local thunderstorms that occur during the pre-monsoon season (March-May) in the eastern parts of India, particularly in West Bengal and Assam. These storms are characterized by strong winds, heavy rainfall, and sometimes hail, often causing damage to crops and property. Option A, Thar Desert, experiences different weather phenomena. Option B, Madhya Pradesh, and Option C, Khasi Hills, do not typically experience 'Kaal Baisakhi' as a distinct regional phenomenon. Therefore, West Bengal is the correct region associated with these specific localized thunderstorms.