The grandest flypast with 75 aircraft to mark the 'Azadi ka Amrut Mahotsav' celebrations was the highlight of the 73rd Republic Day Parade on Wednesday where India displayed its military might and vibrant cultural heritage on Rajpath, with the ceremonial event this year being drastically scaled down in view of the COVID-19 pandemic. Showcased at the Republic Day parade were the Centurion tank, PT-76 tank,?75/24 Pack howitzer and OT-62 TOPAZ armoured personnel carrier that played a major role in defeating Pakistan in the 1971 war.