You can be lucky with a system too, just like you can be lucky with "normal" gambling over a two months. It's probably just another martingale variation. With Martingale you will win small amounts (relative to your bankroll/betsize) most of the time (if you play a limited number of rounds) and occasionally lose your entire bankroll or the table maximum. Of course you can have a good winning streak with a martingale type system. This is just one of thousands of Roulette system gold diggers out there. Some of them will of course get good short/mid-term gains from their system, due to the existence of variance. Just like it's possible for a whale to gain millions in a year.
Now he's got lots of free promotion for his worthless book. I find it very irresponsible of a serious(?) newapaper to print this story as if the system actually works. I hope all the gamblers who buy his book and lose sue both Mr Sambhi and the newspaper (or, wait ... I hope they lose tons to online casinos so I get better bonuses).
Edit: I see the Daily Mail is not the most serious newspaper around.
"Roulette system that works" = A bit of an Oxymoron really.
Depends which way you come at it though, it works for the Casino. It works for him by selling it if people pay for it. It probably "works" with the assumption you have an infinite amount of funds and the table has infinite limits. In the real World though, to the person buying it, it is unlikely to "work" in the way they imply.
Which doesnt mean it wont, or that buying it and trying wont be fun, but I dont think you have any better chance of winning at Roulette with that system than you do by closing your eyes and throwing some chips on the table letting them fall randomly.
I'd dearly love to know what type of maths makes taking odds of 35/1 on a 36/1 shot profitable.
The only roulette "system" I've ever heard of that actually won was nothing to do with maths & everything to do with wheel bias. And even that was defeated easily enough (change the wheels each night....)
Have to say when I read an article like the Daily Mail one my first thought is that it's a scam cooked up some casino to generate a bit of interest & fool some innocents into thinking there are systems out there that can beat the house edge.