The Giant Metrewave Radio Telescope (GMRT) consists of an array of 30 antennas. Each antenna is 45 m in diameter, and has been designed to operate at a range of frequencies from 50 MHz to 1450 MHz. The antennas have been constructed using a novel technique (nicknamed SMART) and their reflecting surface consists of panels of wire mesh. These panels are attached to rope trusses, and by appropriate tensioning of the wires used for attachment the desired parabolic shape is achieved. This design has very low wind loading, as well as a very low total weight for each antenna. Consequently it was possible to build the entire array very economically. In this chapter I give a very brief overview of the GMRT. Subsequent chapters discuss in detail each of the major subsystems of the GMRT.