Gauge conversion. Is going on in a rapid phase b/w Sakri Forbeshanj its actually a part of North East Vision 2020 as soon as Rangiya Murkeonselek is thrown open to traffic all the ballast carrying rakes will be diverted towards FBG...Araria Galgalia is also a small patch which won't take much time..this track will open up new lights if opportunity to North Bihar & adjoining Chickens Neck part of West Bengal