In the last years of the 80s Pakistan saw the need to manufacture its own missiles to counteract the advances of India in the same matter. In 1990 Pakistan made an exchange of technology with the North Korean authorities to get Rodong-1 missiles in exchange for the methodology for uranium enrichment, this agreement is kept secret for obvious reasons, but certain leaks take it for granted. The objective for Pakistan was to obtain a missile capable of carrying a nuclear warhead of 700 kg to 1,500 km away, in order to have almost any territory of India within reach. New electronics, a liquid fuel system and new engines were developed and finally in 1998 the first test fired of Ghauri MRBM was made, as this missile has been baptized. Since then, at least 5 successful launches have been known until 2015, according to Pakistani authorities. An improved version called Ghauri II with a range of 1,800 km has been developed but the exact number of units in service is unknown.
GHAURI gallery and more info