Mahaaz Kashmir LOC Pakistan |24 September 2016 - Dunya News

[Basel]

Mortar has a few advantages over conventional artillery guns due to trajectory problems, dead space, limited road networks and positioning area. Mortars can be positioned closer and fired directly into defiles, trenches and bunkers.

Cirit will be harder to carry along with its ammunition, it will need LOS in most cases while mortar may not.
Mortar can fire on the back side of the mountain while cirit may not be able to do so.

Pakistan can ask it's required version of Cirit it can be single barrel upto 4 barrel launcher for infantry because they can deploy it and use it from remote location. This capability is possible to be added in Cirit and Mizrak-U/O. Pin point accuracy will allow it to go through small openings of Indian bunkers and posts.

Some examples of hand held rocket launchers for reference.