India's longest sea bridge, the Mumbai Trans Harbour Link (MTHL), will be inaugurated by Prime Minister Narendra Modi on January 12. The bridge is a 6-lane sea link, with 16.50 kilometres of the stretch on sea and 5.50 km on land. Maharashtra Chief Minister Eknath Shinde said the 21.8-kilometre-long bridge between Sewri in Mumbai and the Nhava Sheva area in Raigad district will reduce the journey from the current two hours to around 15-20 minutes. The foundation stone for the bridge was laid by PM Modi in December 2016. The bridge has been officially named as Shri Atal Bihari Vajpayee Trans Harbour Link. The estimated cost to build the bridge is Rs 17,843 crore (US$2.2 billion). Watch the video to know more.