Gurdwara Achal Sahib is situated at
Gurdaspur in
Punjab. The Gurdwara stands on the spot where Guru Nanak, the founder of Sikh religion, had an argument with Yogi Bhangar Nath, the leader of Nathpanthi yogis (a sect practicing black magic). The guru proved his superiority over the black magic powers of Yogi Bhangar Nath by defeating them with his vast knowledge.
