Mahesh Gupta admits to having a fascination with real estate. He buys land and builds a residential property on it, and this is something that he has done across the NCR. “The idea is to then lease it out, which brings in income. Having idle real investment is a bad idea,” says Gupta, whose water purifier brand Kent RO commands 40% market share in the reverse osmosis (RO) water purifier segment. Though real estate has caught Gupta’s fancy, his best bet has been his business and this, according to him, is in the 100% ownership of the unlisted Kent RO Systems. From a turnover of ₹66 crore in 2008, the company’s turnover has risen to ₹580 crore in 2014. “If real estate accounts for about 8-10% of my wealth, my equity holding is close to 90%.” He also holds a small part of his wealth (he estimates it to be at about 1-2%) in other companies. “These are stocks that I have held on to for over 20 years.”