How Indian Army uniforms and rifles have evolved over the decades will be on display at this year's Republic Day parade, Major General Alok Kakkar said on Sunday. Three marching contingents of the Indian Army will wear uniforms and carry rifles from previous decades, while one contingent will wear the new combat uniform and carry the latest Tavor rifles at Republic Day Parade-2022 (RDP-2022) as a part of 'Azadi ka Amrit Mahotsav' celebrating the 75th year of India's independence, he said.