Xiaomi launched new MIUI 6.3.5, seeding in Note 4 G – How to Install MIUI 6.3.5
MIUI 6.3.5, Named as KHIMIBL, is available for for Note 4G for Indian users through OTA.
China rom known as KHICNBL and global rom is KHIMIBL
Size : 577.2 MB but only issue is only for Kitkat 4.4.4.
How to Install MIUI 6.3.5 :
Step 1 : Download MIUI ROM Flashing Tool (Size:26M, 29bc366214a42a048e6a7cfb1ca9cc25)
Step 2 : Select the right MIUI ROM version for your phone , and download the corresponding package file.
Step 3 : Turn off the device. Press the Volume– key and the Power button at the same time to enter Fastboot mode. Then connect the device to the Windows PC/laptop via a micro USB cable
Step 4 : Double click on the downloaded ROM file to decompress it. Open the file folder for the decompressed ROM pack, and copy its path on the computer.
Step 5 : Decompress the MIUI ROM flashing tool downloaded in Step 1, and double click on it to install (if there is security warning, select ‘Run’). After installation is completed, open MiFlash.exe and paste into the address bar the ROM file folder path copied in the last step.
Click on the first button (circled out in yellow) to Refresh, and MiFlash should automatically recognize the device. Then click the second button (circled out in red) to flash the ROM file to the device.
Step 6 : Wait until the progress bar inside MiFlash turns fully green, which means the ROM has been successfully installed. Then the phone should automatically boot to the new version.
Source : MIUI Forum