It is reported that Assam Govt. is proposing to change the Standard Time  one hour earlier than the Indian Standard Time, which is based on the time of a location in UP near Lucknow/Varanasi. The reason for the proposed change  is that the sun rises before 0
5.00 AM in the NE states and sets by  05.00 PM one hour earlier than IST.
This issue has benefits as well as complications.
A detailed discussion is necessary in the matter to arrive at the correct decision.