One of the sizzling actresses of South India - Nayantara, who has been staying away from endorsements has recently become the brand ambassador of GRT Jewellers. The ad shoot was conducted recently by one of the most acclaimed and Award winning cinematographers of our country - Nirav Shah. He has also presented a visual treat to the Tamil audience in films such as Thalaivaa, Saivam, Thaandavam, Sarvam and many others. This ad starring Nayantara has been directed by Baby Shankar. The antique collection photoshoot of the jewels modelled by Nayan has already gone viral in the Internet. Let's hope to catch the glowing actress in the glittering ad on TV, soon.