As suggested, wait for Trinity if you can or go for this:
http://www.flipkart.com/samsung-np300e4z-a06in-2nd-pdc-2gb-320gb-dos-laptop/p/itmd35nzkvx3qkzy?pid=COMD9MSYMTCHDPND&ref=954cace7-bc81-406c-ab3f-854101c3373e
Comes closest to a netbook for around 20k