ISRO was/is developing a smaller variant of PSLV called PSLV-3S. It is a three stage variant of the regular four stage PSLV (they removed 2nd stage, and strap-o

ISRO was/is developing a smaller variant of PSLV called PSLV-3S. It is a three stage variant of the regular four stage PSLV (they removed 2nd stage, and strap-on boosters). PSLV-3S payload capacity is 550KG to LEO. However, I don't know about latest developments on it.