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)
There were small posts every few miles where horses were ready to receive messages to send from one post to another. Messages from the Delhi court were reaching Multan, which was around 500 miles away, within days.[1]
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. Distance traversed in Pakistan is 589 kilometres (366 mi).
Then from Multan it led to Kandhar in Afghanistan, and then on to Herat, traversing another 599 kilometres (372 mi).
Again from Herat it led to capital city Mashhad of Khorasan province of Iran, traversing another 576 kilometres (358 mi)