The correct options are
A The Indian standard meridian is the longitude 82º30’ E.
B The Indian standard meridian passes through Mirzapur.
D India follows the time according to the standard meridian.
The Indian standard meridian passes close to the centre of the country, through Mirzapur, Uttar Pradesh. The Indian standard meridian is the longitude 82º30’ E.India follows the time according to the standard meridian.