Which of the following states touches the border of Bangladesh?

The correct answer is Option 2: West Bengal, Assam, Tripura, Mizoram. Key Points Bangladesh shares its borders with 5 Indian states: West Bengal, Assam, Meghalaya, Tripura, and Mizoram. West Bengal shares the longest border with Bangladesh, making it a significant point of connection between the two countries. Tripura shares a long border with Bangladesh as well, with multiple entry points for trade and cultural exchange. Assam and Mizoram also touch the border of Bangladesh, particularly in the northeastern region of India.