Sahu has built up a treasure house of gramophone records which includes Oriya, Hindi, Bengali, English film and non film music, speeches, plays, even jingles. In all, he has 2,900 records, the oldest being an English 78 rpm record of the Edison Bell Co. Ltd - an 1898 rendition of the Slavonic rhapsody, Part I and II by the New Margate Concert Orchestra, London. Sahu's collection also includes the playback album of the first Hindi talkie Alam Ara, the first Bengali film and the first Oriya film, Sita Vivaha (1934), and Oriya cinema playback records up to '87 when cassettes and CDs took over.