True, I recall he mentioned the wrong number for the J-10. He seemed hesitant and unsure whether it was called the J-10 or J-11. He acted like a deliberate slip of a tongue by revealing information and then not knowing what he is talking about. However, just a few weeks later, the news was made public by the Air Force, and the deliveries followed within six to 12 months of his claim. He, despite being an idiot, he was the Minister of Information, so it’s likely some details were disclosed to him in private meetings and he leaked it with innocent face.
The J-35 is on a completely different level as it is an advanced fifth-generation aircraft, and any claims about it would require verification from a credible source. The J-10, on the other hand, had been in production for 20 years, so China selling it to Pakistan was surprising but not shocking.