For that, Malayalam FTA channels should participate in the auction and buy slots by paying crores.
DDFD just won't take FTA feed from satellites and add.
Following dish TV channels are working on ddfd:
Zee Punjab Haryana Himachal
Zee Mpcg
Zee Rajasthan
Zee UP /UK
Zee Bihar /Jharkhand
Zee 24 Kalak
Zee Salaam
Just blind scan the stb to get channels.