Home / Ancient History Batch / ART_MIS_2012_86 Science and Technology in Medieval India UPSC Archival Analysis Exam Year 2012 Evidence Source Link ID: ART_MIS_2012_86 Ref: A History of Science and Technology in India by G. Kuppuram The earliest reference of 'Magnetic Compass' is found in: A. Miftahul FuzalaB. ChachnamaC. Ranazatu's SafarD. Jawamiul Hikayat