Explanation:

Explanation: The National Waterway 1 or NW-1 or Ganga-Bhagirathi-Hooghly river system is  located in India and runs from Haldia (Sagar) to Prayagraj across  the Ganges, Bhagirathi and Hooghly river systems.[1] It is 1,620 km (1,010 mi) long,[2] making it the longest waterway in India.[3] It is of prime importance amongst all the national waterways  considering its locational advantages. The NW-1 passes through West  Bengal, Jharkhand, Bihar and Uttar Pradesh and serves major cities and their industrial hinterlands. Transportation plays an important role in the development of a country and it is of great significance  for a developing country like India. The country is bestowed with a plethora of diverse topography which enables different kinds of transportation. India has about 14500 km of navigable waterways. This includes rivers, backwaters, canals, creeks and so on. National Waterways Act came into effect  in 2016. It proposed 106 additional National Waterways and merges 5 existing Acts which were  declared the 5 National Waterways. In 1986, the Government of India created Inland Waterways  Authority of India (IWAI) for regulation and development of Inland Waterways for navigation and  shipping. Out of the 111 National Waterways declared under the National Waterways Act, 2016, 13  are operational for shipping and navigation and cargo/passenger vessels are moving on them. About  the IWAI Inland Waterways Authority of India: This body was created by the government of India in  1986 for regulating and developing inland waterways for shipping and navigation. The body chiefly  undertakes development and maintenance projects of IWT infrastructure on national waterways. It  undertakes these projects through grants from the Shipping Ministry. Its headquarters is in Noida. It  also has regional offices in various other cities and towns across the country.