An important technology was mastered by ISRO scientists by designing and setting up of a Solid Propellant plant at SHAR.The Solid Propellant Plant (SPP) at Satish Dhawan Space Centre (SDSC) SHAR, set up for manufacturing S200 solid boosters of GSLV Mk-III, was commissioned on December 18, 2008 with the successful casting of Head-End Segment (HES). Subsequently, in February 2009, the Nozzle-End-Segment (NES) and in April 2009 the Middle Segment (MS) were also processed. Thus, processing of all the three segments for the first static test of S200 booster has been completed. The S200 booster segments with 3.2 m dia. stand as the second largest of their kind in the world. SPP has 53 buildings spread over 6 Sq Km area, interconnected with roads of 18 Km length. The annual capacity of the plant is to produce 900 ton of solid propellant required for 12 segments (delivery of four S200 boosters). India becomes the third country after USA and France to develop this capability.