the regional centre of indian bureau of standards is located at
Bureau of Indian Standards As a corporate body, it has 25 members drawn from Central or State Governments, industry, scientific and research institutions, and consumer organisations. Its headquarters are in New Delhi, with regional offices in Kolkata, Chennai, Mumbai, Chandigarh and Delhi and 20 branch offices. It also works as WTO-TBT enquiry point for India.[3]
Indian Standard Time Indian Standard Time (IST) is the time observed throughout India, with a time offset of UTC+05:30. India does not observe daylight saving time (DSTu) or other seasonal adjustments. In military and aviation time IST is designated E* ("Echo-Star").[1]