DHARMAPURI: Union minister Road Transport and Highways of India Nitin Gadkari on Thursday announced that the Salem – Tirupathur – Vaniyambadi road (NH 179 A) which covers a total length of 18 km will be constructed at the cost of Rs 170 crore. MP DNV S Senthilkumar said roads between A Pallipatti and Manajvadi will be upgraded in Dharmapuri as part of the project.