Q. Which National Waterway serves as a crucial link between northeast India and Bangladesh?
Answer: National Waterway 6
Notes: National Waterway 6 (NW-6) is a vital waterway that connects northeast India with Bangladesh, specifically along the River Barak. This waterway is part of a larger initiative to enhance trade and transportation between the two countries. The project is a collaborative effort, with India and Bangladesh sharing development costs, highlighting the importance of regional connectivity.