Infantry Day 2026 honours the valour of Indian Army soldiers who defended Jammu and Kashmir in 1947 and continue to safeguard the nation. TwitterWhatsAppTelegramEmail SRINAGAR: Infantry Day is commemorated on October 27 every year to acknowledge the sterling contribution of the Infantry, the largest fighting arm of the Indian Army. On this day, on October 27, 1947, 1 Sikh Battalion was airlifted from Delhi, and the troops were landed at Srinagar Airport.