The correct answer is: Baba Naga.
Baba Naga was a saint who lived in the 16th century. He was a disciple of Guru Nanak Dev Ji, the first Guru of Sikhism. Baba Naga is revered by both Hindus and Sikhs. A fair is organized in his memory every year in Surkhpur Veeran in Jhajjar district of Haryana.
Baba Gulab Gir was a Sufi saint who lived in the 18th century. He was a disciple of Shahbaz Qalandar. Baba Gulab Gir is revered by both Muslims and Hindus. A fair is organized in his memory every year in Shahjahanpur district of Uttar Pradesh.
Baba Chhillardas was a Hindu saint who lived in the 17th century. He was a disciple of Ramanand. Baba Chhillardas is revered by both Hindus and Sikhs. A fair is organized in his memory every year in Kurukshetra district of Haryana.
Baba Jotnath was a Hindu saint who lived in the 18th century. He was a disciple of Gorakhnath. Baba Jotnath is revered by both Hindus and Sikhs. A fair is organized in his memory every year in Karnal district of Haryana.