I think following SD Channels will be added in Sun Direct
Tamil Channels
Zee Thirai
Jaya Movie
Raj TV
Raj Digital Plus
Raj Musix
Raj news
Puthu Yugam
Vendhar TV
Mega 24
Mega Musiq
Malai Murasu Sethigal
Kalaginar Chithiram
Aastha Tamil
Music zone
Malayalam Channels
Kappa TV
Kaumudy TV
Raj Musix Malayalam
Raj news Malayalam
Darshana TV
Harvest TV
Harvest TV Keralam
Shekinah TV
Kannada Channels
Zee Picchar
Raj Musix Kannada
Raj news Kannada
Dum TV Kannada
Siri Kannada
Aayush TV
TV5 Kannada
Kasthuri newz 24
Aastha Kannada
Telugu Channels
Raj Vissa
Raj Musix Telugu
Raj news Telugu
Studio one
Studio yuva
Hindhu Dharmam
Swarasagar
Aastha Telugu
Bengali Channels
Rupashi Bangla
TV9 Bangla
Marathi Channels
Fakt Marathi
Shemaroo Marathibana
Zee Vajwa
Lokshahi TV
Odia Channels
Argus news
MBC TV
Siddharth TV
Siddharth Gold
Bhojpuri Channels
Zee bioscope
Zee Bihar / jk
Enter 10 Rangeela
Gujarati Channels
News18 Gujarati
CNBC Bazar
Zee 24 kalak
Punjabi Channels
Zee Punjabi
News18 Punjabi / Haryana / Himachal
PTC Music
Balle Balle
Punjabi Hits
Living India news
Hindi Gec
DD Retro
Ishara TV
Shemaroo TV
Hindi Movies
& Pictures
Zee Bollywood
Zee action
Zee Classic
Risthey Cineplex
Colors Cineplex Bollywood
Dhinchakk
Dhinchakk 2
Hindi Music
Zing
B4U Music
E24
Hindi News
News 24
India news
TV9 Bharatvarsh
Sudarshan news
Hindi Business news
Zee Business
English news
India ahead
English Business news
NDTV Profit / Prime
Infotainment & Life Style
Zee Zest
NDTV Good Times
Travel XP
Topper
kids
ETV Bal Bharat
Sports
1 Sports