Acharya Jagadish Chandra Bose Road, earlier known as Lower Circular Road, and its continuation northwards called Acharya Prafulla Chandra Road (Upper Circular Road), is the longest and the most important north-south thoroughfare in Kolkata, India.
APC Road and AJC Bose Road taken together is the longest road in Kolkata. APC Road emerges from the Shyambazar Five-Point Crossing (Paanch mathar more). It then passes through Khanna Crossing, Beadon Street crossing, Manicktala Crossing, Rajabazar Crossing, MG Road Crossing, Sealdah Station and Vidyapati Flyover.
After passing Vidyapati flyover, it is known as AJC Bose Road, which passes through Moulali Crossing, Ripon Street Crossing, Elliot Rd. Crossing, Park Street Crossing, Shakespeare Sarani Crossing, Circus Avenue Crossing, Ballygunge Circular Rd Crossing, Lansdowne Crossing (Minto Park), Camac Street Crossing, Lee Road Crossing, Chowringhee Crossing or Exide Crossing, Cathedral Road Crossing (Nandan and Rabindra Sadan on one side), Victoria Memorial, D L Khan Road Crossing, Alipore Road Crossing, Kolkata Race Course on one side and finishes its journey at Strand Road - Hastings Crossing. From the Point of Circus Avenue Crossing till the Victoria Memorial, the road runs below the "AJC Bose Flyover", which is the 2nd longest flyover in the city at 2.9 km long, connecting Park Circus to Victoria Memorial.
Named after the renowned chemist Acharya Prafulla Chandra Roy and the renowned physicist and botanist Acharya Jagadish Chandra Bose.