The additional files are not getting downloaded or getting stuck. How do I resolve this?

This video explains how to fix the download problem .

Alternately you can also follow the screenshots and instructions below:

Start installing Indus Battle Royale from the Play Store.

Once the download completes, do NOT press the Play button. Just wait on the Play Store page for Indus so the additional download can start from the Store itself automatically. 

If you don’t see the additional download happening on the Play Store, you can see it in your notifications.