🌍 GEODETIC REFERENCE
Surveying in India
Historic Everest 1830 / Lambert conformal India zones. Modern work increasingly WGS84/UTM. SoI operates a growing CORS network.
National datum
WGS 84 / IND
Vertical datum
Indian Spirit Levelling Network
UTM zones
42N through 46N
CORS stations (our DB)
8
Mapping authority
Survey of India (SoI)
Projected coordinate systems & EPSG codes
WGS 84 / IND (geographic)EPSG:4326 →Kalianpur / India zonesEPSG:24378 →
WGS 84 / UTM zones 42N-46Nmultiple codes