Colors Tamil replaces NXT channel on channel number 553 on Videocon D2H. The channel was added today. For me channel name on D2h stb menu was still showing NXT for quite some time. It took more than 30 minutes for the name on the menu to change. Below are the snaps of this channel.
In the above image we can still see the old name. But the channel content was Colors Tamil!
Now it looks proper.