Delhi chief minister Rekha Gupta on Sunday announced that the Centre had given a green signal to infrastructure projects worth Rs 24,000 crore, aimed at easing traffic congestion and reducing pollution in the capital and its surrounding areas. Among the key developments is a five-kilometre tunnel connecting Shiv Murti–Mahipalpur on the Dwarka Expressway with Nelson Mandela Road in Vasant Kunj. The tunnel will be constructed by the National Highways Authority of India (NHAI), and is expected to cost around Rs 3,500 crore.The project was approved during a recent meeting with Union Road Transport Minister Nitin Gadkari, said Gupta, quoted by…