Q. Which of the following National Waterways passes through Indo-Bangladesh Protocol Route?
Answer: Namkhana to AtharaBankiKhal
Notes:

• The National Waterways Act, 2016 has declared 111 inland waterways as ‘National Waterways (NWs) in the country to promote shipping and navigation on them.
• NW-1: Ganga-Bhagirathi-Hooghly River System (Haldia – Allahabad) passes through Uttar Pradesh, Bihar, Jharkhand, West Bengal.
• NW-2: Brahmaputra River (Dhubri – Sadiya) in Assam
• NW-3: West Coast Canal (Kottapuram – Kollam), Champakara and Udyogmandal Canals in Kerala
• NW-4: Kakinada–Puducherry stretch of canals, Kaluvelly Tank, Bhadrachalam – Rajahmundry, Waziraba–Vijayawada on Krishna and Godavari. It passes through Andhra Pradesh, Tamil Nadu and Puducherry
• Waterways in Maharashtra: NW-10 (Amba River), NW-83 (Rajpuri Creek), NW85 (Revadanda Creek – Kundalika River System), NW-91 (Shastri River–Jaigad creek system)
• Waterways in Goa: NW-68 – Mandovi – Usgaon Bridge to Arabian Sea, NW-111 – Zuari– Sanvordem Bridge to Marmugao Port (50 km)
• Waterways in Gujarat & Maharashtra: NW-73-   Narmada River, NW-100- Tapi river
• Sunderbans Waterways (NW-97): Namkhana to AtharaBankiKhal in West Bengal. West Bengal (through Indo-Bangladesh Protocol Route)