This document describes a system for controlling a computer mouse using hand gestures without any physical mouse device. The system uses a webcam to capture video of the user's hand. Computer vision and machine learning algorithms are used to recognize hand gestures in the video frames. Specific gestures like raising different fingers are mapped to mouse actions like left click, right click, and cursor movement. The system is implemented using Python and OpenCV libraries to process the video and detect hand and finger positions. It allows for fully controlling the computer mouse interface through natural hand gestures performed in front of the webcam.