The National Green Tribunal (NGT) has stopped authorities from taking any final decision to begin work on the country's longest sea link from Sewri in Mumbai to Nhava in Navi Mumbai, saying the project entails questions on environment.

It said "substantial questions relating to environment are involved" in the over Rs 8,000 crore Mumbai Trans Harbour Link Project (MTHLP) for building 22-km bridge on public-private partnership model.