Wardaat (1981)
Wardat is a Hindi film made in 1981. The film is the sequel to Suraksha (1979 film). A genre of James Bond spy thriller (Gunmaster G9 being the code for the hero). Large locusts attack the farmers and farmlands resulting in hefty damages. The Indian Government suspects that this is the work of some terrorists and assign this case to their best agent Gunmaster G-9 alias Gopinath, who takes charge and begins the investigation, that will lead him to the dark secret world of underground scientists who are quite capable of harnessing nature to make their ends meet.
More at Wikipedia.