well your deluded to think IAF has only LCA tejas
rather the mainstay of IAF attack is UPG Mig29 & Mirage2000 or SU 30(which too are upgraded with GaN based Virushka AESA radar , Software defined radios and SATCOM LINKs & new Cockpit insturmentaions and mission compouters )
LCA is just a POINT DEFNCE fighter for LIGHT ESCORT or LIGHT INTERCEPTION or LIGHT AIR SUPPORT/STRIKE roles as the last line of defnce of IAF and will always fight inside indian airspace
but your F16 or JF17 or J10 all need LONG LEGs and good payload capacity which other than F16 and J10 to some extend no other PAF mainstay like Mirage III or Mirage IV or JF17s or F7 can do as all of them need to cover at least 500+ Km with at least 3500-5000Kg of weapons and fuel to do any damage and get back safely which is out of there class
and yes just cause there is a supply chain problem with GE404 engines most Pakistani members are dancing with glee forgetting USA also has elections and new things already taking shape and be it Democrats or be it Republicans no one is going to make an enemy with india for a nation like Ukraine just cause India is buying crude oil from russia ... you guys also celebrated 15-08-2019 as a great day and your ISI chief went to Kabul and had tea there now look how many body bags those same GOOD TALLIBUNNIES are sending you
moral of the story ..... dont celebrate too early