Almost three and a half times longer than Vembanad rail bridge in Kerala, Katni in Madhya Pradesh will have India´s longest bridge, according to a leading English daily. The railway bridge will be 14 km on the up line which will be longer that Kerala´s Vembanad rail bridge which is 4.62 km long. According to reports, the down line of the bridge would be 7 km and its total length would be 21 km up and down-side. The design and survey is complete and it will take five years to complete. It is expected to cost around Rs.600 cr.