Yes!! The latest firmware for India region is now DDKQ6 Android 2.3.4.
Method 1: Update using Samsung Kies
Method 2: For flashing with Odin. here is the link to the firmware: DDKQ6 (Pass: sampro.pl)
Then just follow the ODIN tutorial.
We were unable to spot any differences from KQ5 so far. Did you?
Update: One of our reader Ramit has informed that the process of taking screenshots has changed. (by pressing back and home key simultaneously)
Simply press & keep holding the Home key. Task manager will pop up. Press back. Now press lock key to take a screenshot.
This way you can even navigate in the menu (still holding the home key) or some app and take multiple screenshots at a time conveniently.
How to upgrade Samsung Galaxy Ace through Samsung Kies?