Frankly speaking, this is beyond parody at this point and has pretty much degraded to the level of pathetic.
Imagine wagging that "100% Access to Source Code + 100% ToT or No Deal" stick around in the air and still believe that this is actually showcasing the prowess of Akhand Bharat.
Of course, the blind chase after 100% perfection in everything they wanted to procure (while shouting the Amrithabaar Bharat slogan) without the necessary capabilities to make them a reality (more so domestically, since this is what they are most often after) is a major factor (the Tejas' development hell is one such prime example). But more often than not, this is just an epitome of much larger problems at play throughout their comprehensive national industrial capabilities.
I'd say that this cesspool perfectly mirrors how India chases after development and progress in general - Namely, heavily in favor of skipping the necessary building blocks, i.e. the primary sector (raw material extraction) and secondary sector (manufacturing) industries, and just jumping straight into the third sector (services) industry, chasing after shortcuts and hoping that they could eventually become as powerful, wealthy and prosperous as all other major global powers of the past and today.
Without good R&D capabilities, how would you develop good materials for the engine fan blades? Without good production capabilities, how would you use those materials to make the engine fan blades? Without good engine fan blades, how would you build a good aircraft engine? And without a good engine, how would you build a capable fighter jet? All of these haven't touched upon everything else (education, utility and infrastructure, investment and incentives, government policies and oversight, etc) that would enable every single one of the aforementioned stages to be realized.
TL; DR - There is no shortcut. While every country and people have their own circumstances, the fundamental laws of nature remain the same. Nobody can escape this natural progression.