India downed five Pakistani fighter jets of the F-16 and JF-17 class during the intense fighting between the nuclear-armed neighbours in May, Indian Air Force Chief Amar Preet Singh said on Friday.
Pakistan's losses included radars, command and control centres, runways and hangars, the IAF chief said on Operation Sindoor.
He said the S-400 air defence system has performed well, and there is a requirement of more such systems.
He said the IAF needs to add about 30-40 aircraft to its fleet per year, adding that new airbases and other infrastructure was being developed in forward areas of the northern border. With PTI