Answers

2015-04-19T14:27:52+05:30
82 30' EAST HAS BEEN SELECTED AS THE MERIDIAN OF INDIA BECOUSE LONGITUDIONAL EXTENT OF INDIA IS 67' EASTTO 97 25' EAST SO 82 30' IS MEAN OF LONGITUDIONAL EXTENT

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2015-04-24T20:24:48+05:30
the difference between gujrath and arunachal pradesh is 30 degrees . so 82.30 degrees is middle of the india hence it is taken as the indian standard time
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