TNsand Investigator is an Android application designed specifically for RTO checking inspectors and officers. This app aids them in verifying the permit slip by scanning the QR code present on it. Additionally, it allows them to authenticate the sand load and delivery address by the lorry registration number, which is also mentioned on the permit slip.

The app's user interface is straightforward and easy to navigate, making it accessible even to those who aren't tech-savvy. Moreover, the app is free to download and use, which is an added benefit for RTO officials who are always on a tight budget. Overall, TNsand Investigator is a useful tool that simplifies the process of verifying permit slips and ensures that all the sand loads are delivered to the correct address.