The first Sikh guru, Guru Nanak, was born on Guru Nanak Jayanti, also known as Guru Nanak's Prakash Utsav.
It is celebrated to mark the anniversary of their first Sikh Guru who played an important role in shaping and strengthening the Sikh community.
Guru Nanak is believed to have founded Sikhism.
According to the Nanak shahi calendar, Guru Nanak was believed to have been born on April 14, which is Vaisakhi.
However, some Sikh communities hold the belief that Guru Nanak was born on the full moon day of Kartik, the lunar month that falls between October and November.