[Android Themes] jyothisthaliath:
Things to be done first!

1. Root Your Phone : You must gain root access as we need to modify or replace certain system only files. So make sure you root your phone. You will find rooting method for Micromax A56 here : http://xdaforums.com/showthread.php?t=1829389 Trust me its a really safe thing. No harm done to your phone :)

For debugging and FAQs on rooting procedure, please refer : http://xdaforums.com/showthread.php?t=1791748 This is kinda the official thread for our device :) Thanks to Anshubham for his great efforts!

2. Install a Filemanager : The default filemanager app is useless as it can't manipulate files in system folders using root access. You nee a root-supported filemanager, I suggest using Root Explorer

https://play.google.com/store/apps/details?id=com.speedsoftware.rootexplorer

Mind you, its a paid app (but you do know how you can get it for free if you really want to :P) You can also use Root Browser Lite https://play.google.com/store/apps/details?id=com.jrummy.root.browserfree

3. Take Backups : This is really important. As we are going to mess with the system files, once you screw it, you should be able to restore things without much fuzz. In course, you may need to replace certain protected system files and apps. So, whatever app you are trying to mod, make sure you make backup copies of the '.apk' files on your SD card. (SD card isn't safe enough, unless you are in a hurry, copy the files to your PC too). You can use your newly installed filemanager for this purpose.

Now you are all set to start modding! :)

Instructions to install/replace modded System files and APKs

You should realize you are going to play with some of the important files (ROOT folders) which are critical to the phone's working. So try and keep by the steps which are described here. This is the safest way I've been doing this. So, you can be least worried :)

Suppose that we are going to modify the app example.apk inside /system/app folder of your phone. You can use these same steps to replace just about any system app. So I need not repeat them everytime since they are common :)

1. Download the modded version of the "example.apk" file from this thread.

2 Copy this modded apk into your SD card using USB, Bluetooth, etc.

3. Open the "root supported" file-manager app which you have already installed in your phone.

4. Navigate to your SD card folder containing the "example.apk" file. Click "copy".

5. Navigate to your root folder and hit paste. example.apk will be copied there.

6. Long press on the modded file, click "permissions" from the menu.

7. Apply permissions strictly as shown below :

8. Now long press the "example.apk", click "Move", navigate to /system/apps/

9. Click "Paste" and click to confirm replacing the existing file with the same name.

Note : It is important to copy the file to your root folder first and not directly to its destination. This is because, you can't set the required permissions to the file when it resides on the SD card, and if you try to replace them directly without the intermediate copying step, it may crash! So stick to the plan folks :)

Thats it! Now depending on the exact files you tried to replace, your phone may (or may not) go haywire for sometime with lots of Forced Closes. No need to panic :) Just reboot your phone and its good to go!

I shall post my modded files further down these threads. Don't forget to thank me if I helped :)