Infosys promoters opt out of Rs 18,000 crore buyback exercise, details revealed in SEC filing. Record date yet to be announced. Buyback regulations allow promoters to participate. Promoters include Sudha Gopalakrishnan, Nandan Nilekani, Sudha Murty, Narayana Murthy, Rohan Murty, and Akshata Murty. Buyback price set at Rs 1,800 per share. Indian IT giants like Wipro, TCS