Hi,
Thank you for reviewing my changeset and sharing your inputs. Tunnel tag was present for (https://www.openstreetmap.org/way/11755540#map=18/40.12224/-74.47778). Although in reality there was no such tunnel, so I have deleted that tag. This usually happens when OSM doesn't respond while editing, due to network issues and we refresh the web-page. I was unaware of the old changes being saved in the new changeset .I'll be more careful in such incidents going forward and avoid such long edits. 

Regards, 
yallasan