Islamabad, whose air force primarily operates Chinese-made jets and U.S. F-16s, has previously denied that India downed any Pakistani aircraft during the fighting.

Nearly three months after the conclusion of a four-day conflict between India and Pakistan in May, India's Chief of the Air Staff Air Chief Marshal Amar Preet Singh

Most of the aircraft were downed by India’s Russian-made S-400 surface-to-air missile system, citing electronic tracking data as confirmation.

India shot down five Pakistani fighter jets and one other military aircraft during clashes in May, India's air force chief said on Saturday, the first such statement by the country months after its worst military conflict in decades with its neighbour.

Air force chief says S-400 air defence systems took down most of the Pakistani planes; Pakistan rejects statement.