Use APKPure App
Get AOSP Kitkat Boot Animation old version APK for Android
मुख्यमंत्री थीम प्रबंधक के लिए AOSP के Kitkat बूट एनिमेशन
AOSP's Kitkat Boot Animation for the CM Theme Manager
Source here: https://github.com/invisiblek/android_packages_themes_BootAnimations