The aircraft carrier shown in the movie (representing INS Vikrant) has a (wrong) striking shape similar to a US Navy aircraft carrier, which has F86 Sabre in PAF livery (never used by India) and E2C Hawkeye (never used by India).
Seen in the movie are several TATA 1510 trucks in green which in reality only came after 1977.
Pakistani Sabre jets are seen flying past a man in a stone quarry, but the subsequent engine noise heard is of propeller-driven aircraft rather than a jet.