DD Freedish already announced last year that Prasar Bharati DTH will add new channels in MPEG-4 mode with CAS system. It means MPEG-4 channels will be not being completely free to air but after CAS it will be free for all users.
For receive these MPEG-4 with CAS channels users have to replace their set-top box with provided by Doordarshan authorized dealers.

Here is channel list which has been testing by DD Freedish
iCAS TV Test 601
iCAS TV Test 602
iCAS TV Test 603
iCAS TV Test 604
iCAS TV Test 605
iCAS TV Test 606
iCAS TV Test 607
iCAS TV Test 608

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Here are frequencies of these channels:
Satellite: GSAT15 at 93.5 East
LNB Frequencies: 09750 -10600
TP Frequency: 11630
Pol : V
Symbol Rate: 30000
FEC: 3/4
Encryption: Yes / Testing Mode

For more updates of DD Direct Plus, keep visit us on www.dddirectdth.com