NEW DELHI: The Union Cabinet is likely to approve the long-awaited Rs 7,000-crore tunnel project, along with approach roads, connecting Nelson Mandela Marg in Vasant Kunj to the Shiv Murti interchange on DelhiGurgaon Expressway. The project, comprising a tunnel, flyovers and an elevated U-turn, will ensure seamless connectivity to Terminal 3 and Gurgaon and Dwarka Expressways for traffic travelling from Munirka and Chhattarpur, and vice versa.