Not counting the Mirages & Mig-29s, IAF has about 260 Su-30 Mk1 against PAF fewer than 80 F-16s. In my humble opinion; JF-17 Block 3 is in response to IAF’s overwhelming superiority in the numbers of BVR capable fighters. How many Block 3 Thunders are planned? Even if PAF acquires 100 block-3 Thunders, we would still be numerically inferior.
Acquisition of 2 squadrons of Rafael, a fighter superior to F-16 Block 52 as well as the latest JF-17, gives IAF an edge over PAF. Mica BVR missile carried by Rafael is as capable as the PL-18 and the USA BVR missiles. Understand India is also getting the delivery of 'Meteor' BVR missile in May.
India has no need to respond. We underestimate IAF capabilities at our peril.