Brothers saw their wealth surge as their Kolkata-headquartered Berger Paints India, the country's second-largest paint maker, in which they hold 75%, reported a 55% jump in net profit for a recent quarter. Berger is banking on rising demand in the Northeast, where it is building new factories. In June the company transferred its automotive-paints business to BNB Coatings India, a joint venture with Japan's Nippon Paint.