These are the instructions to root Karbonn Titanium S2 (running on android 4.2) using Framaroot Application on Phone itself (does not require computer).
Requirements: Your Karbonn Titanium S2 smartphone should have at-least 10-20 percent of phone battery to perform the rooting process.
Optional: You can also verify the root status of your device by using the Root Checker Application.
[*] Does not worked? By using the above tutorial if you fails to root your Titanium S2 then please try vRoot Method.
[*] No data loss process: Your Karbonn Titanium S2 Phone Data like contacts, pictures, videos, music and etc will be not affected with the above method.
[*] Device Warranty: Once you full unroot your device through SuperSU, you can claim for the phone warranty. In short no need to worry for phone warranty.
[*] Karbonn Stock Firmware: If you are looking for the original Stock Firmware, then head over to the Karbonn Stock Firmware page.
[*] Karbonn USB Driver: If you are looking for the original usb driver then head over to the Download Karbonn USB Driver page.
[*] Credits: Framaroot Application is developed by alephzain (XDA Developer).