New Delhi: President Pranab Mukherjee will attend an Onam programme at Rashtrapati Bhavan on Saturday. According to a president secretariat release, Mukherjee will attend the programme "Kairali", organised by the government of Kerala. The president's guests for the evening will include Vice President Hamid Ansari and union ministers. Governor of Kerala P. Sathasivam and Kerala Chief Minister Pinarayi Vijayan will also attend the event. The programme will comprise an ensemble of music and dance forms of Kerala such as Vadyam, Mohiniattam and Kathakali. It will also have a specially choreographed show portraying the Onam festival and cultural forms such as Oppana, Mayura Nritham, Theyyam, Kalari, Kerala Natanam, Thiruvathira and Margam Kali. Onam will be celebrated on September 13 and 14 this year.