Not exactly. In Jain tradition, Sauripura is generally identified with Dvaraka, not Junagadh. One Jain source also notes it as “Sauripura or Mount Girnar with inner Dvaraka,” showing that the tradition links it with the Dvaraka/Girnar region rather than Junagadh city itself. ( jainqq.org)

What is in Junagadh is Mount Girnar, which is strongly associated with Neminath and Rajul’s story in Jain tradition. Rajul’s cave and the Girnar pilgrimage area are near Junagadh. ( jainmandir.org)

So the short answer is: Sauripura was not Junagadh; it is usually taken as Dvaraka, while Rajul’s connection to Junagadh is through Girnar. ( jainworld.jainworld.com)