That is true, but the S-400 is still a major look or threat to PAF. It is better we overestimate our enemies this way we will come more prepared to battle.
One option is getting ToT of the DF-17 from China. If Pakistan can get th DF-17 from China we can destroy the S-400 batteries given we can locate them at their bases.
Have you ever wondered how ballistic cum cruise missile like Shaurya survives the high aero-thermal loads experienced while flying at highly depressed trajectories (like a cruise missile) at hypersonic speeds of ~ 8 Mach ?One way to deal with that is to ensure uniform heat distribution over the missile body (prevent sustained localised heating)
This is done by rolling the missile while inflight via deflection of rear fin in the tandem fins configuration which results in a corkscrew effect forcing the missile to roll
There is also a ablative coating which not only provides thermal protection but also reduces drag & increases range
This allows Shaurya to survive while flying low within the dense atmosphere like a cruise missile at high hypersonic speeds
Similar Tandem Fin configuration is also seen in SMART & PRALAY missiles
Which IMO implies that both SMART & PRALAY also posses the capability to execute (and survive) flight trajectories similar to ballistic cum cruise missiles (eg depressed trajectories) if so required
You're forgetting the effectiveness of other air defence systems in India's arsenal like Barak 8, QRSAM, Akash Prime and SpyderI'm sure Pakistan already has counters
Indian ABM shield is coming up soon.
BDL quietly and away from fanfare recieved orders for unspecified numbers of PAD/AAD missiles.