Sri Guru Tegh Bahadur Ji, the ninth Guru of the Sikhs, is remembered as Hind-di-Chadar (Shield of India) for his unparalleled sacrifice in defence of religious freedom. In 1675 he made the ultimate sacrifice, willingly laying down his life to defend Hindus facing forced conversion under Mughal Emperor Aurangzeb's oppressive rule, showcasing his unwavering courage.