How to stop download in chrome download in Android.
To stop downloading some file in chrome you can do this: Simply press cancel or x on notification where it shows that file is downloading or it shows remaining time, or you can longpress on that notification (if you don't have cancel button there) and press 'app info' when it opens app in app manager just simply force stop it.
Here is the short way TO solve this issue.
Go to download FOLDER through Explore app or any files opening app.
Inside you will find the (current) DOWNLOADING file with extension. .crdownload
Now you try to open the file, it will ask for "open with" Then select any one to open the file.
Finally wait for sometime, download notification will disappear and download will STOP.
Goto to Apps / App Manager
If Chrome is User Downloaded app You can Press "Clear Data"
If Chrome if System app, You can press "Manage Space"
Then, Google Chrome Storage will get opened,
Then, Click on Clear All Data.
Note : Please note your all data will be cleared. So Backup your Bookmarks if needed.