You people are confusing with govt's version of CAS (they meant digital cable TV) with technical term CAS (Conditional Access System).What govt wanted at that time when CAS was planned for Metro cities was that more and more people are encouraged to get Digital cable and abandoned Analogue cable system, because Analogue cable system is not proper addressable system, hence Analogue cable operators were cheating with actual number of subscribers. Since Analogue cable operators were never reporting actual number of subscribers (they might be reporting just 20-30% of actual subscribers they had), so they were paying less tax and paying less amount to Pay channel providers. With Digital Cable, each subscriber would have unique ID and can be tracked for his record (about channels subscribed). This would bring transparency in Cable operations about number of subscribers operator is serving, and also channel providers would get actual number of subscribers to their respective channels.Now about less price for channel. This I guess was again plan by govt to lure customers to Digital cable, but practically its not possible for channel providers to provide channel at such low price (imagine Star Plus and Star Cricket is priced equal, is it possible as content price of these channels has huge difference 🙂 ).