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"]]