Model of PSLV:
HAL participation in PSLV structures: Click image to view it in Full resolution
ISRO Launch Vehicles: India developed two experimental satellite launch vehicles SLV-3 and ASLV during the 70’s and early 80’s respectively. Polar satellite launch vehicle (PSLV) was commissioned in to service in 1997.
Comparison of GSLV, PSLV, ASLV and SLV-3: