Q. Mool Mantra was written by whom ?
Answer: Guru Nanak
Notes: The Mool Mantra was written by Guru Nanak dev ji, who was the founder of Sikhism. The Mool Mantar means 'basic teaching' and is found at the beginning of every section of the Guru Granth Sahib. It is repeated each day during early morning prayer. The first words of the Mool Mantar are 'Ik Onkar' (there is one God).

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