Alcatel One Touch Fierce Kitkat upgrade

I have Alcatel One Touch Fierce (Firmware 4.2.2, Build L31UM11). I have rooted this phone - at least that is what Root Checker and other tools report. I have following questions that someone can help me with

1. I want to install Indian language on this phone. How can I do that?


2. I want to upgrade this phone to Kitkat. How can I do that?


3. From where can I obtan the stock ROM of this phone

Thank you!