Census 2021-NPR is a free lifestyle application developed by the Office of The Registrar General India for Android devices. The app is designed to assist registered field functionaries with the NPR (National Population Register) pre-test by providing an NPR updation utility.

The app is exclusively for use by registered field functionaries and is not intended for public use. It is specifically meant to help field functionaries with the pre-test process. The app allows users to update NPR data during the pre-test, making it easier for field functionaries to complete their tasks.

Overall, Census 2021-NPR is a useful tool for registered field functionaries conducting the NPR pre-test. However, it is important to note that the app is not intended for public use and cannot be used by individuals who are not registered field functionaries.