How can I install a CSC code which are not listed on Samsung Galaxy S/S2/S3 CSC app? I have a Samsung Galaxy S2. 

I want to change its CSC to any Indian version. I came to know that ODD, INU, IND, INA, INS, IMS &amp; REL are the Indian CSCs. But when I checked it with Samsung Galaxy S / S2/ S3 CSC, these CSCs are not listed. 

How can I install a CSC which is not in the list?
If you change CSC, you need to wipe / Factory Reset your phone. 

So, you might as well download and flash a stock ROM that is for India. It has Indian CSC.

EDIT #1: You do not need root to flash stock ROM on your phone using Odin.