How to convert between Geodetic and Indian Grid coordinates ?

[VijitWadhwa]

How can i convert lat long data to Indian Grid System and get the spefic zone along with easting and northing ? MBranscomb-esristaff‌akajanus-esristaff‌mnielsen-esristaff‌

Thanks in advance

[JoeHershman]

GeometryEngine.Project Method (Geometry, SpatialReference) 

[VijitWadhwa]

Hi,

Sir I want to add a custom co-ordinate system created in ArcMap , How can i use that in ArcGIS Runtime sdk for .NET ?