West Bengal shares the longest border with Bangladesh among all Indian states. The India-Bangladesh border is approximately 4,096.7 km long, of which West Bengal covers about 2,216.7 km.
Which Indian State Has the Longest Border With Bangladesh?
West Bengal shares the longest border with Bangladesh. Its international border with Bangladesh is approximately 2,216.7 km long. It accounts for more than half of India’s total land border with Bangladesh. The border passes through several districts of West Bengal. West Bengal’s geographical location makes it a key state for India-Bangladesh connectivity.
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How Long Is the India-Bangladesh Border?
The total India-Bangladesh international border is approximately 4,096.7 km. It is India’s longest international land border with any neighbouring country. The border runs through five Indian states. West Bengal has the largest share of this boundary. The border includes land areas as well as riverine sections.
Which Indian States Share a Border With Bangladesh?
Five Indian states share an international boundary with Bangladesh:
| Indian State | Border Length |
| West Bengal | 2,216.7 km |
| Tripura | 856 km |
| Meghalaya | 443 km |
| Mizoram | 318 km |
| Assam | 263 km |
| Total | 4,096.7 km |
West Bengal
West Bengal shares the longest border with Bangladesh. It border length is about 2,216.7 km. It forms a major part of India’s eastern boundary.
Tripura
Tripura shares approximately 856 km of border with Bangladesh. Bangladesh surrounds the state on three sides. It has several important border crossing points.
Meghalaya
Meghalaya shares approximately 443 km with Bangladesh. The border includes hilly and riverine terrain. Several border districts are located along this international boundary.
Mizoram
Mizoram shares approximately 318 km of border with Bangladesh. The boundary lies along the state’s western side. It is one of India’s northeastern states bordering Bangladesh.
Assam
Assam shares approximately 263 km with Bangladesh. It has the shortest Bangladesh border among the five Indian states. The boundary is located in the southern part of the state.
Which Country Shares India’s Longest International Border?
Bangladesh shares India’s longest international land border. The border is approximately 4,096.7 km long. It passes through five Indian states. Bangladesh is located to India’s east. The border is an important part of India’s regional trade and connectivity network.
What Is the Key GK Fact About the India-Bangladesh Border?
| Metric / Parameter | Details |
| India's Longest Land Border | Bangladesh (4,096.7 km) |
| Total Bordering Indian States | 5 states |
| State with Longest Border | West Bengal (2,216.7 km) |
| Other Bordering States | Tripura (856 km), Meghalaya (443 km), Mizoram (318 km), Assam (262 km) |