Tata Sky is doing the good thing. Now all channels are available in A la carte. You can choose individual channels without the need to have a useless base package. But the minimum charge for a month can not be less than 150/-. You should select channels such that reaches the minimum amount(Rs150)
Still it is a good option and we can pay only the channels we watch. This ala carte option for all channels is available only from tata Sky!