GTB station on the Harbour line will be the first railway station in Mumbai to get the model toilet. The in-house design model is scientifically designed for better drainage, water supply and flooring to prevent water stagnation. This pay-and-use unit will have two water closets, one basic toilet for women, five urinals and two basins for men. The model will be built with the superior material and advanced ventilation system. Added to this, the unit will be also surrounded by a flower bed.