Question

Why are ahemdabad and kolkata able to see the noon sun exactly over head twice in a year but not in delhi?

Answer 1

Ahmedabad and Kolkota lie within the tropical zone slightly above the Tropic Of Cancer. The two former cities get the overhead sun twice a year. This happens once when the suns direct rays shift from the equator to the Tropic and secondly when it moves away from the Tropic to the Equator. However, the overhead sun never over the areas like Delhi that does not fall in the Tropical Zone.