General Atlantic Service Company, L.P., The Blackstone Group Inc. (NYSE:BX) and TA Associates Management, L.P. have evinced interest in Syska LED Lights Pvt. Ltd. which plans to sell a significant minority stake, said two people aware of the matter, requesting anonymity. Promoters of Syska are seeking to sell 40%-49% stake in the company at a valuation of INR 35,000 million - INR 40,000 million, said the first person cited above. "The promoters are looking to raise equity capital to deleverage the parent company's balance sheet. While there is interest from private equity majors, the discussions are at a preliminary stage," the person said. "The company has appointed Edelweiss as a sole adviser on the transaction." "The deal value could be anywhere between INR 10,000 million – INR 10,500 million," said the second person cited above.