South Central Railway ( Construction ) Engineering Procurement Construction ( EPC ) Contract of Doubling of Track between Dupadu station ( Excl ) From Km 255. 500 & Dhone station ( Incl ) to Km 297. 120 ( 41. 620 km ) including Electrification & Signaling works of South Central Railway in connection with Mahabubnagar- Dhone Doubling Project in the State of Andhra Pradesh.