Here is a picture of the top dog of indian missiles the Agni-5 hitching a ride behind a volvo truck.
Another view of the same vehicle reveals the scale of the vehicle. This is a road train with too much gaps between wheels and not much ground clearance .
There is no crew accomodation or a command post on this vehicle,so there must be a convoy of vehicles traveling with this already over sized "TEL" . Problem with any of the support vehicles will restrict the mobility of the whole system.
Plus this setup does not seem to be all terrain off road capable.
On the other hand all Pakistani missiles re mounted on purpose built all terrain vehicles which can go off road.