Question

Why 82degree30'E has been selected as the standard meridian of india?

Answer 1

Due to it's wide east-west extent which makes it difficult to select the longitudes at the eastern or western ends as Standard meridians.It will lead to serious discrepancies between the time followed and the sun’s position in the sky. To avoid such difficulty and to have a uniform time across the country 82 30 E has been chosen as the Standard Meridian as it passes through the middle of India reducing such differences.