GEOGCS["Unknown datum based upon the Everest 1830 (1967 Definition) ellipsoid (deprecated)",DATUM["Not_specified_based_on_Everest_1830_1967_Definition_ellipsoid",SPHEROID["Everest 1830 (1967 Definition)",6377298.556,300.8017,AUTHORITY["EPSG","7016"]],AUTHORITY["EPSG","6016"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4016"]]