After returning from his second travel to Europe, Nasereddin Shah, intending to construct a road between Tehran and Azerbaijan, ordered the construction of a road between Tehran and Qazvin, giving the task to and . After a short while however, Amin al-Molk resigned from the task, leaving Amin as-Soltan as the one to construct the road. Amin as-Soltan then appointed Bagher Khan to oversee the construction of the road using 180 workers. The construction was completed after around a year in June 1879, and Bagher Khan was given the duty of maintaining the road, a role he had until 1896.
