This is a huge loss for India and IAF to loose an experienced pilot . I know that fighter jets are prone to crash and any jet even the best and most modern in the world can crash anyday. I assume that the reason may be either G-LOC or, Engine Malfunction. But one thing I want to state that HAL's quality control and maintenance is not up to the mark in my opinion. They are infamous for delays and improper planning too , also pointed out by our respected IAF CHIEF ACM. I think HAL's monopoly in military aviation development of India has to be ended and more private players should be involved not just in mere components manufacturing but also in integration, assemble, quality control and testing. I don't want to put the blame for this incident exclusively on HAL but it was my general opinion on future of Indian military aviation. We have seen issues multiple times in our DHRUV HELICOPTERS also.