Guru Nanak Jayanti or Prakash Utsav is celebrated in the Hindu month of Kartik every year where the devotees remember life and preachings of Guru Nanak Dev--founder of the Sikh religion and their first guru. Today is the birthday of the Guru Nanak and this year it is the 550th birth anniversary of Nanak Dev. The festival is predominant in states such as Punjab, Haryana and Chandigarh. The celebrations are marked worldwide and people of the Sikh community are gathering at Gurudwaras to pray on this auspicious occasion.