Which one of the following is not correctly matched ?

The correct answer is (a). Amguri is a town in Assam, India. It is not a major producer of petroleum. The other options are correctly matched.

(b) Lanjgarh is a town in Odisha, India. It is a major producer of bauxite, which is a raw material used to make aluminum.

(c) Kamptee is a town in Maharashtra, India. It is a major producer of copper.

(d) Bellary is a town in Karnataka, India. It is a major producer of iron ore.