The correct answer is option 1: National Highway No. 3. Shershah Suri Marg is the popular name for National Highway No. 3. This highway is named after Sher Shah Suri, who was a medieval Indian emperor. It runs from Agra in Uttar Pradesh to Mumbai in Maharashtra, passing through various major cities and towns such as Gwalior, Indore, and Ahmedabad. It is an important and busy highway that connects the northern and western parts of India. It plays a crucial role in the transportation of goods and people between these regions. The name "Shershah Suri Marg" is a tribute to Sher Shah Suri`s contributions to the development of infrastructure in India during his reign.