Delhi–Multan road

Delhi–Multan road, an ancient route had existed since the time of king Ashoka or earlier, was renovated by the Sur Empire ruler Sher Shah Suri (1486–1545) in order to improve transit in the areas between Delhi and Multan, leading to Kandahar and Herat in Afghanistan, eventually to Mashhad capital of Khorasan province of Iran, providing access to capital city Ashgabat of Turkmenistan.

[1] On the Indian side, it passed through the cities of Rohtak, Panipat, Karnal, Kurukshetra, Ambala, Rajpura, Sirhind, Ludhiana, Firozpur, Hussainiwala etc.

On the Pakistani side, the road goes through the cities of Kasur, Raiwind, Lahore, Nankana Sahab, Harapa, Chichawatni, Tulamba, Makhdumpur, Kabirwala and finally Multan.

Sher Shah also built a fort in Tulamba City to make a strong Communication path from Multan to Delhi.

Again from Herat it led to capital city Mashhad of Khorasan province of Iran, traversing another 576 kilometres (358 mi) Finally from Mashhad in Iran, it eventually led to capital city Ashgabat of Ashgabat Province in Turkmenistan, traversing final 652 kilometres (405 mi).

Evolution of Indian trade networks. The main map shows the routes since Mughal times , Inset A: shows the major prehistorical cultural currents, B: pre- Mauryan routes, C: Mauryan routes, D: routes c. 1st century CE, and E: the Z-shaped region of developed roads.
Names of territories during the Caliphate in 750 CE.
An accurate map of Persia by Emanuel Bowen showing the names of territories during the Persian Safavid dynasty and Mughal Empire of India ( ca. 1500–1747)