JSW Steel, India’s third-largest steelmaker, is looking to buy a controlling stake in Bramhani Industries Ltd (BIL), a company floated by Karnataka tourism minister G Janardhan Reddy.Bramhani has been working on setting up an integrated steel plant in Kadapa, the hometown of former Andhra Pradesh chief minister Y S Rajaeskhara Reddy. A highly placed source told DNA Money due diligence is currently on to arrive at fair valuation. JSW Steel did not comment on this.But a compa…