Which ruler is credited with the building of the grand trunk road?

The Grand Trunk Road is credited to Sher Shah Suri, the ruler of the Suri Empire in the 16th century. He expanded and improved existing routes to create a major trade and military road that connected the eastern and western parts of the Indian subcontinent. This road facilitated commerce and communication, playing a crucial role in the region's economic development. Sher Shah's contributions to infrastructure are still recognized today.