How to flash official Kitkat ROM for Canvas A120

I am using Micromax Canvas 2 Colors A120 (4GB ROM model). Today I updated my phone to Android Kitkat 4.4. It is not official update. I manually flashed this ROM. Below is the screen shot of my updated MMX C2C A120.

 My phone became smooth after updating it to Kitkat version. I feel heating problem has been slightly reduced after the update. I am not sure because I have used only for 5 hrs. 

 Bugs after updating:

I found one major bug. My internal storage is not getting detected in my PC while connecting via USB cable. However I can see internal storage in my phone in File Manager.

The other bug is I was able to record only 720p - 3gp format video. Previously I as able to record 1080p video.

So far I was able to see detect only this bug. Soon I will share the bugs after I found it.  

 How to update to Kitkat version

You need to download the following tools first to flash Android Kitkat ROM.

1. http://d-h.st/oef for sptools
2. http://singledrivers.blogspot.in/2014/05/micromax-a120-canvas-2-color-usb-driver.html?m=1 for drivers
3.  http://www.mediafire.com/download/ooke3prh5j36hde/S5501_KK_Agua_Rio_20140719_V0.0714475.zip for kitkat rom

1. Open SP tools
2. Click scatter loading
3. Select the scatter file from extracted ROM folder .
4. Then click frimware upgrade.
5. Then remove battery on your phone .
6. Then connect your phone via data cable .
7. Then flashing will continue automatically
8. Before opening SP tools you must install drivers and extract the ROM zip