Barrackpore Trunk Road, commonly known as BT Road, is 6 laned trunk road in Kolkata West Bengal, India. It connects Shaymbazar with Barrackpore via Sodepur .Built in 1775, it is the oldest metalled road and one of the busiest roads in the country. The 18.1 km long road is a part of both State Highway 1 and State Highway 2. From Wikipedia