How and where to add language properties file for hindi in 7.3

Hi,

I want to add Hindi as a language in SAP NetWeaver Portal 7.3. I am unable to drill down to file where the language properties are kept.

I want to know which file to modify, the path to the file and how to go about adding hindi as a language.

I couldn't find anything in accordance with SAP NetWeaver Portal 7.3; although 7.1 options are there, but 7.3 is different.

Please guide.