In spite of the time differences how does india adopt a uniform time?

India adopts a uniform time by using a single time zone known as Indian Standard Time (IST), which is UTC+5:30. This decision was made to facilitate administrative efficiency and national unity, despite the country spanning multiple time zones. The government chose IST based on the mean time of the Allahabad Observatory, which is centrally located. This uniformity helps streamline communication, transportation, and business operations across the vast nation.