It sud be LED and support Full HD. Screen size not more than 26inch.
Can someone tell me wat is HD Support?
You wont find a Full HD TV in market below 32 inch. You can check out Sony Bravia KLV-26BX320 (I bought one two months back for 24k), it has a 26inch HD ready screen (1280x720).
Full HD (1920x1080) videos are automatically downsized to 1280x720, downsizing does not affect the video quality. So you wont have any problem viewing full HD videos.
Please remember, in India, you wont get more than 10/12 HD channels anyway, so you will have to watch a lot of content in Standerd TV resolution which is far less than HD, in those case, the bigger/higher-res your screen is, the more the video will be stretched to fit, causing pixalation and watercolor effect. 26 inch screens will be best for you for watching TV programs.