But in making a map with the 1975 Indian systems still use the WGS 84 system exists, because at present land still used coordinate system UTM using the surface evidence, Indian1975.
But in mapping systems still use Indian1975 paired with WGS84 is because of the current Land Department continues to use UTM coordinate system using the available evidence Indian1975.
But in mapping is still used Indian1975 system coupled with the system WGS84 was due to land at present still ใช้ระบบ coordinates UTM using ground evidence. Indian1975.