Indian DTH services Airtel, TataSky, Videocon, BIG TV,Sun Direct and Dish TV has has multi language option. 
- Discovery ( English, Hindi,Tamil,Telugu)
- National Geographic( English,Telugu)
- Fox history( English,Hindi)
- Animal planet( English,Hindi)
- Disney(English,Hindi)
- Disney xd (English,Hindi,Tamil,Telugu)
- Pogo(English,Hindi)
- Nick(English,Hindi,Tamil,Telugu)
- Hungama (English,Hindi,Tamil,Telugu)
- Cartoon network(English,Hindi,Tamil,Telugu)
- TLC(Travel & living) ( English,Hindi)
All the DTH has options in remote to change the language from English to Hindi,Tamil or Telugu.
Example procedure in Airtel DTH to change the language:
Changing the audio language
You can change the audio language of some channels which are broadcasted in more than one language. While watching the channel, press the (blue) button. This will show options of the languages available. Select the language you wish to activate.
Update: List of HD Channels in India for English/Tamil/Hindi/Telugu
hungama fully availabie in telugu, discovery mostly and nick is partially available in telugu
Thanks for the info! I have updated the post.
Discovery has tamil feed along with HIndi, Telegu etc., before two years iteself Discovery separate Tamil channel is coming, From, animal planet , they removed /tamil feed and planned to introduce Animal planet separate Tamil channel, Ihave seen a big banner in many places in Chennai. but , now there is no seperate Tamil Animal Planet channel as well as Tamil feed has been removed(animal planet) whereas in National geo, fox life, National wild , Tamil feed is available now.
is it possible to change language in asianet digital setop box
How to change language from English to Tamil in sun direct?