Historic Old Delhi Delhi , the capital of India and Sikhs have a love-hate story that goes back about 500 years. Sikh Gurus have blessed the old city with their visit. But this ancient city is also soaked with the sacred blood of many thousands of Sikh souls ; the ninth Guru, and thousands of brave and fearless martyrs who died purely and simply to maintain, defend and fight for the most noble of human causes - the protection of ones liberty, the right to practice ones own religion and the freedom to live with the assurance of justice. Nanak Piao Gurdwara Nanak Piao is built at the site, where Guru Nanak Dev camped when he visited Delhi in 1505 during the reign of Sultan Sikandar Lodhi. Here Guru Nanak offered water to the thirsty travelers, hence the name of the shrine. The word "Piao" mean to "offer water to drink" and refers to the offering of water to all the thirsty who visited this shrine. Even today, the Well used by the Guru is preserved from whic