4382 km of inland waterways have been declared as National Waterways (NWs), as per details given below: (i) Ganga-Bhagirathi-Hooghly river system (Allahabad-Haldia-1620 km) in the states of Uttar Pradesh, Bihar, Jharkhand and West Bengal as NW-1, declared in 1986. (ii) River Brahmaputra (Dhubri-Sadiya \96 891 km) in the state of Assam as NW-2 declared in 1988. (iii) West Coast Canal (Kottapuram-Kollam) along with Udyogmandal and Champakara Canals \96 (205 km) in the state of Kerala as NW-3 declared in 1993. (iv) Kakinada-Puducherry canals along with Godavari and Krishna rivers (1078 km) \96 in the states of Andhra Pradesh, Tamil Nadu and Union territory of Puducherry as NW-4 declared in 2008. (v) East Coast Canal integrated with Brahmani river and Mahanadi delta rivers (588 km) in the states of West Bengal and Odisha as NW-5 declared in 2008. The first three waterways have already been substantially developed and made operational for movement of cargo & passenger vessels. The total revenue earned from first three NWs during the last three years and current year state-wise are as follows: For the remaining two waterways, process is on to develop and make them operational. The investment for development of these waterways would depend on the completion of Techno Economic Feasibility (TEF) studies and Detailed Project Report (DPR) for each waterway. Year U.P. Bihar West Bengal Assam Kerala Total 2012-13 2,59,707 43,87,229 2,66,82,031 1,88,863 13,17,218 3,28,41,011 2013-14 69,36,823 1,97,85,924 1,94,59,145 26,03,335 69,78,461 5,57,63,688 2014-15 2,08,19,521 1,97,85,924 2,44,14,444 19,20,107 18,27,612 6,04,88,972 2015-16 * 50,30,420 78,679 47,81,119 35,996 40,892 99,67,106 Note:- (*) As on 30.06.2015