Multiple choice

The Indian Standard Time is the local time of a place situated at 8½° E longitude near

  1. Allahabad

  2. Delhi

  3. Chennai

  4. Ujjain

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A Correct answer
Explanation

Indian Standard Time (IST) is based on 82.5° E longitude, which passes near Allahabad (now Prayagraj) in Uttar Pradesh. This meridian was chosen as the standard time reference for India, 5.5 hours ahead of GMT. The 82.5° E line runs through the center of the country.