Mahesh joined Acumen as Director of India in 2018. Before joining Acumen, he founded First Energy Private, Ltd., an alternative energy company, which he led as the CEO and Managing Director from 2009. Prior to that, Mahesh ran BP Energy BP's biomass energy venture which sold cook-stoves and biomass fuel pellets to low-income consumers. When BP decided to spin off the company, Mahesh took over the business, pivoting the business several times and ultimately succeeded in building one of the most successful alternative energy companies in India, specializing in commercial biomass cooking solutions. In 2017, First Energy was acquired by Thermax Limited and Mahesh continues to serve on the company's Board.