20710-WAG1-BZA 'Bidhan' --- 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. Framed by Rudranil RoyChowdhuryat National Rail Museum on 2nd Sept 2012.