This writing is my short opinion, and research based article for the Best Writer completion. I don’t expect to win, and that was not my complete goal here I am just trying to give my opinion on a underutilized strategic weapon. This is my first real article here that I gave a good effort on so go easy on me please.
Long range multiple launch rocket systems (MLRS) are somewhat underappreciated systems that can be used effectively in a suppressive role and are a much cheaper alternative then cruise missiles yet allow much more payload delivered on target. Pakistan could in theory use rocket artillery with ranges varying from 100 to 400km acquired from nations that are recent suppliers of Pakistan that produce these systems namely, Turkey, and China. Assuming Pakistan could use its MLRS in an offensive role like how America used its Tomahawk cruise missiles in the early stages of the Iraq war, and more recently in the April 2017 strikes on Syrian airbases thereby rendering roughly 20% of the Syrian air force destroyed. 
Currently Pakistan has A-100 which lacks range, and accuracy to hit more then a few airbases without coming very close to the LOC and within striking range of well-placed strikes. I have taken the liberty of making a map of the Western Air Command to the best of my knowledge with public sources with the range of the A-100 overlapped. As you can see at most Pakistan can take out a few airbases with concentrated strikes of 50+ rockets absolutely decimating targets with a large 200kg fragmentation warhead that will decimate aircraft runways and allow PAF aircraft to destroy the aircraft on the ground.
One solution to this problem would be Pakistan acquiring longer range MLRS such as the A300 manufactured by China and currently used by the PLA army. The A-300 has a maximum range of 290 kilometers, a 150kg warhead roughly 1/3 the explosives of the Tomahawk and is not bound by MTCR rules which China follows. This range would allow destruction, or a significant disruption in operation of airbases which would allow Pakistani fighters to operate much more easily inside of India without a major fighter threat for at least a few weeks as India is forced to make new airbases and operate further inside of India. I have again taken the liberty of making a map with the A300 launched from or near Lahore overlain over Indian airbases. As is evident, only about five bases would survive assuming a success rate of 100%, this scenario is only about the Western air command, but it can be applied to the South Western Air command as well. The other five airbases could be taken out by cruise missiles in Pakistani service such as the Babur.