The Centre has given the green signal for four laning of the Nashik-Sinnar highway here in North Maharashtra, local MP Sameer Bhujbal said today. The road widening work will cost Rs 313 crore, of which the Centre will provide Rs 65.5 crore. It will be developed on build, operate, transfer (BOT) basis under public-private partnership model, he said. The 25.39km-stretch will have bridges, underground roads and also pedestrian walkways. The project will go a long way in easing traffic on the busy Nashik-Pune route, Bhujbal added.