CyanogenMod is based on the Android Open Source Project with extra contributions from many people within the Android community. It can be used without any need to have any Google application installed. Linked below is a package that has come from another Android project that restore the Google parts. CyanogenMod does still include various hardware-specific code, which is also slowly being open-sourced anyway.
The source code for CyanogenMod is available in the CyanogenMod Github repo. And if you would like to contribute to CyanogenMod, please visit ourGerrit Code Review.
See Also : How to Install TWRP Recovery in Xiaomi Redmi Note 3
Final Words : Hey guyes flash this Creepy awesome CyanogenMod Rom 13.0 and enjoy latest version CyanogenMod. We are having some more custom rom for Redmi 2, we will post shortly them till then enjoy CyanogenMod. Stany tuned with us for more updates..