Bandhu-Guru is a free Android app developed by Tata Motors Limited for their commercial vehicle customers. The app offers a range of features, including the ability for registered GURU MECHANICS to log in using their mobile number, create cases for customers, upload photos, update charges for Tata Genuine Parts and labor, and purchase Tata Motors Genuine spare parts from nearby retailers.

One of the standout features of the app is its multilingual support for ease of use. The app aims to provide faster service to close cases with the confidence of Tata Genuine parts fitment, which is expected to increase business for Guru Mechanics. Overall, Bandhu-Guru is a useful app for commercial vehicle customers who are looking for efficient solutions to their vehicle-related issues. However, it is important to note that the app is only available for registered GURU MECHANICS, which may limit its usefulness for other users.