Though both the technologies have its own advantages & disadvantages, the main problem with both is sharing of cable across different rooms in a flat. In most of the modern flats everyone has a parallel TV connection in all their rooms. With CAS, though free-to-air channels will still be available in the parallel connection, but with DTH even that is not possible because to view even a single channel you need the decoder. I guess TRAI should think about some mechanism for cable sharing to happen. Inspite of all the listed advantages of both the technologies, they have practical limitations & I firmly believe that the government is going to face stiff opposition from various sections of the society for implementing them (& specially CAS).
