True statement regarding Kahalgaon thermal power plant located in Bihar

• A. Kahalgaon Thermal Power is located in Bhagalpur
• B. The Kahalgaon Thermal Power Plant established in Bihar, which is a unit of National Hydroelectric Corporation, was established with the help of Russia.
• C. The generation capacity of Kahalgaon thermal power will be 2340 MW after completion of Phase II.
• D. all of the above