My favourite Indian place in London is probably a 5 minute cab ride from Holland Park (southern entrance) and about 10-15 minutes from Notting Hill.
http://www.k-a-r-m-a.co.uk/
I've been to quite a few Indian places in London and this one takes the cake (or the papadom

) in my mind as good value for the money. As such, I tend to go there every couple months. Their xacuti is particularly good. Enjoy!