grand trunk road from peshawar to kolkata was built by
Grand Trunk Road The route spanning the Grand Trunk (GT) road existed during the reign of Chandragupta Maurya, extending from the mouth of the Ganges to the north-western frontier of the Empire.[6] The predecessor of the modern road was rebuilt by Sher Shah Suri, who renovated and extended the ancient Mauryan route in the 16th century.[7] The road was considerably upgraded in the British period between 1833 and 1860.[8]