Guru Nanak Dev Ji, the founder of Sikh religion and first of a succession of ten Gurus, was born in 1469 AD at Rai Bhoi ki Talwandi, now called Nankana Sahib in Pakistan. His father, Kalyan Das Ji, more commonly known as Mehta Kalu was a Patwari i.e. village accountant, in the service of Rai Bular, the local Muslim chief. His father had a few acres of land of his own on which he raised cattle. His mother’s name was Mata Tripta and had an elder sister Bibi Nanaki who loved her younger brother very much.