Highlights Guru Tegh Bahadur is considered to have contributed to the Sri Guru Granth Sahib He died in 1675, executed by the Mughal emperor Aurangzeb New Delhi: The auspicious occasion of Guru Tegh Bahadur's 400th Prakash Purab is being celebrated on May 1, this year. He was the 9th of the 10 Gurus that founded the Sikh religion. He was also considered to be the leader of Sikhs from 1665 until his demise in 1675. On this day, people pay respects to the religious leader. Prime Minister Narendra Modi also visited the holy Gurudwara Sis Ganj Sahib today to pray to Guru Tegh Bahadur as seen on his Twitter.