Why there is a variation of weather in two different parts of India, though climate
was summer?

Due to distance from the equator.

Explanation:

There is a variation of weather in two different parts of India, though climate  was summer because both parts experience different amount of sunlight. There are some regions in India which is located on the equator so they experience very hot weather while on the other hand, some regions are present at a large distance from the equator so direct sunlight does not occur and the temperature is moderately warm.

answer; ///the above statement is (true);