Question

mention the reason due to which there is time lag of 2 hrs between the western limit and Eastern limit ???

Answer 1

There is a difference of 4 minutes between every longitude .The distance between Gujarat and Arunachal Pradesh is 2933 kms. This leads to a lag of approx 2 hrs between them. Thus 82*3 E passing through mirzapur has been made as the standard meridian of India. The whole country follows the time of this latitude.