I have tried Mitsu.in and idotz.net or maybe .in. I had very bad experience with Mitsu.in. After I booked a domain with them they never alloted it to me and on top of it they didn't even contact me for 3 days. Then I filed compalint with Paypal and he called me and started abusing me. Anyhow I got my money back with help of Paypal and now I am pretty happy with idotz.

So moral of the story is that... Cheaper is not always the best!