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Indian Standard Time relates to
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- 75.5° E longitude
- 82.5° E longitude
- 90.5° E longitude
- 0° longitude
Correct Option: B
Indian Standard Time is calculated on the basis of 82.5° E longitude, from a clock tower in Mirzapur (25.15°N 82.58°E) (near Allahabad in the state of Uttar Pradesh) which is nearly on the corresponding longitude reference line.