PROJCS["Cassini_Bangladesh_Zone_16_Chottogram", GEOGCS["Unknown datum based upon the Everest (1830 Definition) ellipsoid (deprecated)", DATUM["Not_specified_based_on_Everest_1830_Definition_ellipsoid", SPHEROID["Everest (1830 Definition)",6377299.36559538,300.801725543355, AUTHORITY["EPSG","7042"]], AUTHORITY["EPSG","6042"]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4042"]], PROJECTION["Cassini_Soldner"], PARAMETER["latitude_of_origin",22], PARAMETER["central_meridian",92], PARAMETER["false_easting",0], PARAMETER["false_northing",0], UNIT["chain",20.1168, AUTHORITY["EPSG","9097"]], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["ESRI","102949"]]