mumbai, May 8 -- Private equity (PE) firms Blackstone Inc., Temasek Holdings Ltd and Bain Capital Lp are evaluating a controlling stake in Haldiram Snacks Food Pvt. Ltd (HSFPL), three people aware of the development said. The investors are looking to buy at least 51% stake in the sweets-and-savouries maker at a valuation of $8-10 billion....