100% legit, yes. They source it directly from the manufacturer, and don't have to pay import charges or go through a middleman, so can charge less than retailers like the sponsors on here. I've only dealt with Ajit once, and that was indirectly, but he really did come up with the goods!
http://custombats.co.uk/cbforum/index.php?topic=28959.0 The Sareen Sports bat I got from him is really very good, rivals my English and NZ made bats, some which cost me over double!
I know some others have had a poor buying experience with him, but he's not out there to con anyone. I'm sure some people will say how they've had pretty good experiences dealing with him too. Don't forget to factor in import tax on the goods, normally around 20% of the value stated on the package I think! If you use the search function, I'm sure you'll find some reviews on his service, both good and bad.