Bharti Telecom Ltd has increased its stake in Bharti Airtel to 39.59% by acquiring an additional 1.35% stake from Indian Continent Investment Ltd through a Rs 8,301.73-crore block deal. ICIL s stake in Airtel has dipped to 4.56%, while Sunil Mittal s Bharti Enterprises and Singapore Telecommunications own 50.56% and 49.44% respectively in BTL.