GEOGCS["Unknown datum based upon the Everest 1830 (1975 Definition) ellipsoid (deprecated)",
    DATUM["Not_specified_based_on_Everest_1830_1975_Definition_ellipsoid",
        SPHEROID["Everest 1830 (1975 Definition)",6377299.151,300.8017255,
            AUTHORITY["EPSG","7045"]],
        AUTHORITY["EPSG","6045"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4045"]]