We learned something about raising a production line and maybe some integration work, but I don't think it went much further than that. CAC had done the bulk of the design and development work, not us.
In fact, we're trying to build actual design and development capacity through Project AZM, but even then, our lack of investment and skilled domestic manpower is bottlenecking the vision. It's been 4 years since we had announced Project AZM, and we're not seeing anything emerge from it.
I'm not being pessimistic, but we don't need to look at India or Turkey to see faults. In fact, our semi-secret nuclear weapons program was showing signs of growth within 1-2 years of it starting in the 1970s. We had a number of public and even private sector firms (e.g., DESCON) engage in R&D and construction of facilities (e.g., New Labs). It was very obvious, and the world us took seriously.
In the next few years, we need to see (or at least know of) things like wind-tunnel facilities, scaled technology demonstrators, subsystem design and development initiatives, and inputs.