The three thermal power stations in Bihar run on coal are

BPSC treated this question as having no correct option (cancelled).

Explanation

Bokaro, Chandrapura (Chandpura) and Santaldih are three coal-based thermal power stations. At present, Bokaro and Chandrapura are in the state of Jharkhand (earlier Bihar), while Santaldih is located in West Bengal. Therefore, both during the time of the question and even at present, Santaldih Thermal Power Station is located in the state of West Bengal. At present, in Bihar, coal-based thermal power stations such as Barauni, Barh and Kahalgaon are operated by NTPC.