The following are existing glossary resources. Please first check that you are indeed allowed to use them.
For Free and Open Source Software, the single most useful resource is probably at http://open-tran.eu/ which allows you to view translations from many of the major FOSS applications. Support for Open-Tran.eu is integrated into some translation tools, such as Virtaal.
The FUEL project tries to coordinate terminology development amongst Indic languages.