Rajesh Nilkantha Joshi (born on October 31, 1964) of Maharashtra, India, set a record for making the lightest rubber powered indoor flying aero model. He made a light weight indoor flying aero model (weighing 0.77 gm; height 4.5 cm), using balsa wood strips, thin metal wires, small plastic leads, mylar film and imported rubber band, as confirmed on April 8, 2024.