KTP-Challan Generation is a free Android app developed by Kolkata Police, categorized under Business & Productivity. It is an internal circulation app used for the prosecution of traffic violation. This app generates challans for traffic violations and enables the police to maintain a record of challans generated.

The app is user-friendly and easy to navigate. It allows the police to generate challans by simply entering the vehicle number and the type of violation. The app also provides the option to take a picture of the violation as evidence. The generated challans can be saved and shared as required. Overall, KTP-Challan Generation is a useful tool for the Kolkata Police in managing the prosecution of traffic violations.