Chithi Messenger is a free social and communication app developed by Digital Revolution Technologies Ltd for Android users. It provides users with a comprehensive platform to communicate with their contacts through various mediums, including messages, voice calls, video calls, images, video recordings, and audio recordings.

The app's user interface is clean, intuitive, and easy to navigate. Upon opening the app, users are prompted to log in with their mobile number, after which they can start adding contacts and communicating with them. The app's messaging feature allows users to send and receive text messages, images, and audio recordings. The voice and video call features are of good quality, with clear audio and video output.

Overall, Chithi Messenger is an excellent communication app for Android users. It provides a seamless communication experience and is a great initiative for Smart India launched by Digital Revolution Technologies Ltd.