Shaj,
Things are very fine when you make money in the market that too when you start fresh as a Trader, I too was of this opinion when I made money. But one big loss brought me to ground reality.
I'm also from IT field and went through the same feelings that you had. But my suggestion is do it simultaneously without quitting your job. Once you make good money, maybe a couple of crores you may quit your job, my intention here is it is good to have an alternate career plan, trading is a good alternate career plan, continue in your job and simultaneously trade for a period of 10 ~ 15 yrs, by the time which you would be very wise and rich and then take a call . Cheers