Central Organisation for Railway Electrification
 The Central Organisation for Railway Electrification (CORE) (Hindi: केन्द्रीय रेल विद्युतीकरण संगठन) has its headquarters at Allahabad India. It is in overall charge of railway electrification over the entire network of Indian Railways. However of late some electrification works have been entrusted to Rail Vikas Nigam Limited a Public Sector Undertaking (PSU) under the Ministry of Railways of the Government of India. Additionally small electrification works are being done by zonal railways.