All is "underway". Which means, right now IAF doesn't even have a common datalink, and tbh it's still not obvious when/if they'll ever get one, given how Dassault behaves.
Common communication interface is a relatively low bar, yet here we are. Rest of hopes abt a well integrated force after that point are unrealistic.
Indian Air Force has the Vayulink data link, which allows fighter aircraft of different origins to share data with one another, for example, Rafales can exchange information with Su-30MKIs. It is designed to provide secure and jam-resistant communication. However, if all fighter aircraft are equipped with indigenous radars, mission computers, electronic warfare suites, missiles, and communication systems, the level of integration would become even more robust.
Such integration would allow different platforms to work together seamlessly. For example, a surface-to-air missile such as the Akash or the S-400 could be launched from the ground, while a Tejas, Su-30MKI, or an AWACS aircraft provides target updates and guidance. A ground-based radar may not always detect a low-flying fighter aircraft or cruise missile until it is relatively close because of the radar horizon, whereas an AWACS or a fighter aircraft flying at altitude has a much better field of view and can detect such targets much earlier. Satellites can also contribute by detecting and tracking airborne objects and sharing that information with fighter aircraft, AWACS, and ground-based air defense systems.
As satellite-based surveillance, networking, and real-time data sharing continue to improve, the effectiveness of stealth aircraft could be increasingly challenged. Modern air warfare is becoming as much about information superiority as it is about aircraft performance. Semiconductors, software, data links, artificial intelligence, sensors, and network-centric warfare are becoming increasingly important. A country like India, which has invested heavily in electronics and software development, is well positioned to benefit from this shift.
At the same time, India's relatively limited investment in areas such as advanced hardware manufacturing, metallurgy, materials science, and engine technology has resulted in continued dependence on imported fighter aircraft engines. However, I believe this gap can be addressed over the next 10–15 years, either through international collaboration or through indigenous development.