The loss of Qandhar was a big blow to the Mughal empire from the viewpoint of strategic stronghold.

Qandhar, located in present-day Afghanistan, was a strategically important city for the Mughal Empire. It served as a vital stronghold and acted as a buffer territory between the Mughal Empire and the Persian Empire. Qandhar provided a significant advantage in terms of defense and control over the western frontier of the empire.

Losing Qandhar meant that the Mughal Empire lost a crucial strategic stronghold, which weakened their position and exposed their western borders to potential invasions and attacks. It also disrupted the communication and trade routes in the region, hindering the empire`s ability to maintain control and influence over the territories beyond Qandhar.

Furthermore, Qandhar was rich in natural resources, including fertile lands and mineral reserves. Losing control over these resources had economic implications for the Mughal Empire as well. However, the primary reason for considering the loss of Qandhar as a big blow to the Mughal Empire was its strategic significance and the impact it had on the empire`s defense and control over the region.