The correct option is 2 and 3 only.
Explanation
Inland Waterways in India are regulated and developed by the Inland Waterways Authority of India (IWAI). Under the National Waterways Act, 2016, 111 waterways have been declared as National Waterways (NWs) to promote cost-effective and environmentally friendly freight and passenger movement.
Statement 1 is Incorrect: National Waterway-1 (NW-1) is located on the Ganga-Bhagirathi-Hooghly river system, not the Brahmaputra River. It stretches from Prayagraj (Allahabad) in Uttar Pradesh to Haldia in West Bengal and is the longest National Waterway in India.
Statement 2 is Correct: National Waterway-2 (NW-2) is situated on the Brahmaputra River. It connects Sadiya and Dhubri in the state of Assam, serving as a vital transport link for the North-Eastern region.
Statement 3 is Correct: National Waterway-3 (NW-3) is located in Kerala and runs from Kottapuram to Kollam. It comprises the West Coast Canal along with the Champakara and Udyogmandal canals. It is distinct for being the first National Waterway with 24-hour navigation facilities.
Key Takeaway: The three major operational waterways are NW-1 (Ganga: Prayagraj-Haldia), NW-2 (Brahmaputra: Sadiya-Dhubri), and NW-3 (West Coast Canal: Kottapuram-Kollam).