New Delhi, Feb 28 (ANI): The capital city came alive recently with folk performances by artists from across the country. DESAG-2014 was the event held at Pragati Maidan, on the sidelines of the New Delhi World Book Fair. Guru Rewben Mashangva from Manipur, who is better known as the King of Naga folk blues enthralled the audience along with his son Saka. Rewben played his own invented flute - Yangkahui along with a guitar and a mouth organ.