Gurdwara Nanak Piao is situated on G.T. Road in sabji mandi area in North Delhi. This Gurudwara stands in the memory of first Sikh Guru, Guru Nanak Dev Ji. Guru Ji visited Delhi in 1505 and stayed in a garden. Guru Ji delivered sermons and sang his bani (kirtan) accompanied by Bhai Bala and Bhai Mardana. Soon a number of people started visiting him regularly. The garden where he was staying soon became a place of pilgrimage. Many would bring gifts for the Guru which he distributed among the poor. Besides this, He used to offer food and water to the hungry and thirsty, hence the name of the shrine. The word "Piao" mean to "offer liquid 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 Ji is preserved and one can still see the well from which Guru Ji served water at the shrine.