(e.g., Chrome) and toggle on Allow from this source . 🚀 Step 3: Install the APK
To download and install an APK file like this safely, follow the steps below. 📥 Step 1: Download the File
Android devices block apps from outside the Play Store by default. You must grant permission:
Only download the file from an official government or institutional website to avoid malware.
If you missed the notification, open your Files app, go to the Downloads folder, and tap NDASAT_base.apk .
Open your mobile browser (like Chrome) and navigate to the official download link.
Go to Settings > Apps & Notifications > Special App Access > Install Unknown Apps .