Telangana shares its longest border with which Indian state?

The correct answer is: A) Karnataka

Telangana shares its longest border with Karnataka. The border between Telangana and Karnataka is 797 km long. It runs from the north-west to the south-east of the state, and is mostly defined by the River Krishna.

The other options are incorrect because:

• Andhra Pradesh is a state in the south-central region of India. It is bordered by Telangana to the north, Chhattisgarh to the north-east, Odisha to the east, Tamil Nadu to the south, Karnataka to the south-west, and Maharashtra to the west.
• Maharashtra is a state in the western region of India. It is bordered by Gujarat to the north, Madhya Pradesh to the east, Chhattisgarh to the south-east, Telangana to the south, Karnataka to the south-west, and Goa to the west.
• Odisha is a state in the eastern region of India. It is bordered by Jharkhand to the north, Chhattisgarh to the north-east, Andhra Pradesh to the south, Telangana to the south-west, and West Bengal to the west.