Article:

> Portions of northern and western India, especially areas near the borders with Pakistan and Nepal, may endure the most extreme heat.

Wikipedia:

> Summer in northwestern India starts from April and ends in July, and in the rest of the country from March to May. [...] > The hottest month for the western and southern regions of the country is April; for most of North India, it is May. - https://en.m.wikipedia.org/wiki/Climate_of_India

Seems to align fairly well?