The teen idol phenomenon has been pretty strong across the rest of Asia. But we haven't really seen it emerge in India, mainly because the entertainment industry is dominated by stifling cronyism and nepotism, which will try to force an aging SRK and octogenarian Big B down our throats rather than offer new blood. I think that the corrupt Bollywood hegemony can be challenged and overthrown, by showcasing local language talent, and fresh youthful faces.
In pursuing this, I would recommend specifically promoting local languages plus sanskrit, while downplaying Hindi, which unfortunately is just a front for Urdu anyway. This type of approach would undermine the crooked Bollywood hegemons, and their inherently anti-national bent. Where cronyism and monopolism predominate and stifle, then new choices can be refreshingly liberating. People prefer freedom of choice, and where it is absent then new choices will look all the more appealing.