 Contrary to popular perception, "Ghazi" technological feats were downgraded and extensively refitted its Fleet Snorkel under the Guppy program of the U.S. Navy at the Philadelphia Naval Dockyard, and was mostly unmodernized when she joined the services of Pakistan Navy.Naval historians had described "Ghazi" as an unarmed "clockwork mouse" used for training purposes.Nonetheless, the Indian Navy immediately was under the impression that it was militarized and an updated submarine that posed a serious threat.