National Waterway 66
National WaterwaysGujaratImportance 3/5medium
Mahi River. Official length: 247 km.
Why UPSC cares
- Exam theme: Water.
- Exam theme: Infrastructure.
Prelims facts
- Coordinates:
- 22.5736° N, 70.7808° E
- State/UT:
- Gujarat
- Category:
- National Waterways
- Length:
- 247 km
Prelims lens · study aid, machine-composed from the facts above — verify before citing
Remember National Waterway 66 as national waterways in Gujarat. Ask yourself: which state, which neighbours on the map, and one current-affairs hook.
Related locations
- National Waterway 1 · Uttar Pradesh, Bihar, Jharkhand, West Bengal
- National Waterway 2 · Assam
- National Waterway 3 · Kerala
- National Waterway 4 · Andhra Pradesh, Telangana, Chhattisgarh, Karnataka, Tamil Nadu, Puducherry, Maharashtra
- National Waterway 5 · Odisha, West Bengal
- National Waterway 16 · Assam
Official sources
Source: Inland Waterways Authority of India / MoPSW
Code-reviewed 2026-09-24. Per-row source verification is in progress — verify boundaries with the Survey of India. Independent educational platform, not affiliated with UPSC.