AP eChallan is a free Android application developed by Katyayini Infotech Private Limited under the Travel & Navigation category. The app provides an easy way to retrieve vehicle information using the vehicle registration number. By simply entering the registration number of any vehicle, users can access details like owner name, vehicle class, maker's name, fuel type, color, manufacturing year, registration date, engine number, chassis number, financier name, vehicle status, registration authority, owner Aadhar details, insurance name, vehicle permit details, and FC issue details.

The app also allows users to check the challan or eChallan status of any vehicle before buying it. However, it is important to note that the app uses publicly available information and the developer is not responsible for the validity of the information provided. Additionally, the app is not affiliated with any RTO authority of India and all details shown in the app about vehicles are publicly available on the mParivahan website. Overall, AP eChallan is a useful tool for anyone looking to access vehicle information quickly and easily.