Which one of the following pairs is not correctly matched ?

Amlai - Chhattisgarh
Ballarpur - Maharashtra
Brajrajnagar - Orissa
Rajahmundry - Andhra Pradesh

The correct answer is (c). Brajrajnagar is a city in Odisha, while the other three options are correctly matched.

Amlai is a village in the Koriya district of Chhattisgarh. Ballarpur is a city in the Chandrapur district of Maharashtra. Rajahmundry is a city in the East Godavari district of Andhra Pradesh.