How to install NDK Manually[android]

Download the .zip file. Start the installation through SDK manager.
Go to %userprofile%\AppData\Local\Android\sdk\ndk-bundle and copy .installer folder to desktop and cancel the downloading in SDK manager.
Open .installer folder and open .installationdata file and check the folder in which the file is being downloaded like:
%userprofile%\AppData\Local\Temp\PackageOperation01.
Copy downloaded .zip file to the folder PackageOperation01 or whatever listed in .installationdata file.
Now copy the .installer folder from desktop to %userprofile%\AppData\Local\Android\sdk\ndk-bundle
and start the SDK manager
and start the installation again for NDK.
The SDK manager will start the installation skipping the download process.