WAG1-BZA-20710 'Bidhan' --- Built by Chittaranjan Locomotive Works in 1963. This loco was the first Indian built main line electric freight locomotive. Christened as 'Bidhan' earlier belonged to Vijaywada shed. With Bo-BO wheel configuration. 3400 hp engine. 1820 tonnes haulage capacity. Fitted with highly advanced features such as the spring-borne force-ventilated, fully suspended AEC-Alstom-Siemens MG1420 traction motors. Monomotor bogies with air brakes for loco, vacuum train brakes as original equipment. Regenerative braking provided. Motors are permanently connected in parallel. Speed controlled by transformer taps. Fitted with Faiveley AM-12 pantos. Framed by Roy at National Rail Museum in Sept 2012.