This Interim Report on Climate Change over India prepared by the Centre for Climate Change Research (CCCR) in the Indian Institute of Tropical Meteorology (IITM) Pune, is intended to provide a brief overview of (a) Updated assessment of observed climate change over India (b) Future climate projections over India (c) Development of the IITM Earth System Model to better understand and quantify climate change and its regional impacts. The three topics, which are among the core research activities of the CCCR at IITM, have been presented as three chapters in this Interim Report.