I believe the only solution here is to hire an independent third party that can assess the ground situation, and if they believe that its safe then team India should visit and play in Pakistan. Furthermore if team India then too refuses then ICC should heavily fine them, and lastly suspend them from the next ICC tournament to send out a strong message.
I agree with you. Here they can solve it through third parties. or they can claim maximum protection through the ICC. And if ICC or third party gives positive news then they can go there and play. But if they fail without any reason then they should be punished by economic restriction or others according to the ICC decision. There may be political issues not cricketers. I think here the players are not disapproving but their cricket board is creating such problems to get some other advantages.
For public knowledge but in that case thread's knowledge.
PCB did try that route in court and according to my knowledge, they lost every time and even had to pay fine + reimbursement to BCCI.
The reason they lost was that they failed to provide proof or a single piece of paper against BCCI.