This meridian of longitude (82.5°E) is 5 and a half hours ahead from the time at Greenwich. India has the IST as it’s standard time since, in such a case that it could not have possibly been there, the nation would have distinction of 2 hours (as India is an enormous nation and has a huge East-west degree there’s a distinction of 2 hours from Gujarat in the west to Assam in the east). Henceforth, IST is a significant meridian of longitude.
Final Answer: IST is a meridian of longitude. It is a ways off of 82.5∘ from the Greenwich towards the EAST. It goes through ALLAHABAD which is the surmised focus of India.