South India leading lady Nayanthara is currently basking in the success of her latest hit Iru Mugan. The actress was spotted celebrating Onam with beau Vignesh Sivan. Looking absolutely gorgeous in a Kerala Kasavu saree, she kept her accessories minimal wearing just a red bindi to complement her features. With gentle breeze on her hair and Nayan smiling to pose on this perfect day, we can say that she really enjoys the company of Vignesh Sivan.