DD Agartala renamed long time back to DD Tripura. It is a single channel. DD Agartala channel no longer exists. It is a Bengali channel- DD Tripura.
Moreover bro you have not mentioned about the other shared channels like Info channel from sun direct, karma ayurveda from Dish tv. @Deep.S bro. By the way good work bro
AIR World Services launched. AIR World Service 1 AIR World Service 2
2 more chs.
Also AIR Northwood Service channels too not updated bro..
The following channels are also missing:
1. FTA Audio Block (Radio)
2. Info Channel (shared from Sun Direct)
3. Karma Ayurveda (Shared from DishTV)
4. D2H Default Landing (Shared from Videocon D2H)
5. Customer Care (2 channels shared from Dish TV)
In your list there are 48 Radio channels but actually DD Free Dish providing 53 Radio channels. I can prove it with snap.
Here is the snap: