 Thermogravimetric analysis of Indian almond leaf revealed four stages of decomposition, with most mass loss occurring at stage 2, 188 to 460 degrees Celsius, due to simultaneous decomposition of cellulose, hemicellulose, and lignin. The shifting of pyrolysis curve occurred with increasing heating rate due to heat transfer limitations, while the rate of mass loss decreased with higher heating rates due to inert contents such as ash and less volatile matters. The mean activation energy calculated by Kissinger, Freidman, KS, and FWO was 52.67, 45.53, 73.73, and 72.28 kg mole, respectively, and compared with earlier researchers' findings, it falls within the range of activation energy of reported leaves. This article was authored by David Joseph, J. Bensam Raj, and Karupasami Ramar.