India, Feb. 5 -- Singer Sonu Nigam performed at the newly-inaugurated Open Air Theatre at the Rashtrapati Bhavan in Delhi on Monday. "As an Indian, to be invited to perform on the Rashtrapati Bhavan Diwas and to get the opportunity to not only perform in front of the President of India Droupadi Murmu, but also have a one-on-one interaction with her was an overwhelming feeling. I was the first artiste to perform at the newly built amphitheatre. It's a matter of good fortune. They invited my family too, so my father (singer Agam Kumar Nigam), sister (singer Meenal Nigam) and brother-in-law Sumit Mahendru accompanied me," Sonu says....