National Highway 27 (NH 27), an East - West National highway in India that starts in Porbandar and ends in Silchar, the highway passes through the states of Gujarat, Rajasthan, Madhya Pradesh, Uttar Pradesh, Bihar, West Bengal, Assam.NH-27 was laid and is maintained by Ministry of Road Transport and Highways (MoRTH). It is the second longest National Highway (after NH 44) in India and is a part of NS-EW Corridor of NHAI.