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Projecting to Everest 1830C (Indian 1975 da...   Carrie Munill Jul 09, 2007
Re: Projecting to Everest 1830C (Indian 197...   Melita Kennedy Jul 09, 2007
Re: Projecting to Everest 1830C (Indian 197...   Carrie Munill Jul 09, 2007
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Subject Projecting to Everest 1830C (Indian 1975 datum) 
Author Carrie Munill 
Date Jul 09, 2007 
Message  
   
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Subject Re: Projecting to Everest 1830C (Indian 1975 datum) 
Author Melita Kennedy 
Date Jul 09, 2007 
Message The spheroid parameters for Everest Adjustment 1937 are the same as your Everest 1830 C. I would assume they're the same, particularly since the gcs/datum names are the same.

Is this data in latitude/longitude? If it is, you then have to decide whether the UTM projected coordinate systems are also based upon Indian 1975. If so, you're done, just project the data. If you want UTM coordinate systems based on WGS84, then you need to use Indian_1975_To_WGS_1984_3 which has the same parameter values as those listed above.

Actually all the signed are changed, which means your parameters are FROM wgs84 TO Indian 1975. Indian_1975_To_WGS_1984_3, because it's defined FROM Indian 1975 TO wgs84, has positive parameter values.

Melita 
  Melita Kennedy
ESRI Product Specialist 
   
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Subject Re: Projecting to Everest 1830C (Indian 1975 datum) 
Author Carrie Munill 
Date Jul 09, 2007 
Message Thank you Melita, you are a lifesaver. :) The information is exactly what I needed.
Thank you!
Carrie