They're not adding channels because currently they're busy in changing packs. Their system is already messed up with this & addition is not possible. They'll add channels after 7 February.
@srikanth26 , I'll suggest you to be with airtel for at least this month. They'll add pending channels for sure & they've already started the process.
Since, the price is same on all DTHs so select the one which have all channels & provides good service i.e TS.
Currently, stay with airtel until & unless everything gets settled.