Four Swaroops of Guru Nanak Patshah

1. Nirankar - Guru Nanak is the Formless Lord Himself.
Gur Nanak, Nanak Har Soi

2. Sakaar - He appeared in the Luminous form of Jagat Guru Nanak
and fascinates all the worlds.
Jot Roop Har Aap Guru Nanak Kahayio

3. Gurbani - Bani Guru Guru Hai Bani

4. Nimrata - Garibi is His fourth Swaroop.

Baba Nand Singh Ji Maharaj