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Why 82 degree 30 minutes east has been selected as the standard meridian of india
82 degree and 30' is taken as the standard meridian of India because:
  • It avoids confusion regarding train and flight timings as there is a time lag of 2 hours from Gujarat to Arunachal Pradesh.
  • It divides the two hour lag from west to east into one hour by passing through Mirzapur in Uttar Pradesh.