India, Jan. 9 -- Actor Nupur Sanon and singer Stebin Ben are all set to begin their wedding celebrations as the couple was spotted at the Mumbai airport, leaving for Udaipur on Wednesday. They were joined by Nupur's elder sister, actor Kriti Sanon, and her boyfriend Kabir Bahia. The couple is set to marry on January 11 at Raffles Udaipur, with festivities scheduled to begin on January 9. As per sources, a star-studded reception will also be hosted in a 5-star hotel in South Mumbai on January 13. Nupur and Stebin have kept their relationship largely away from the public eye. They announced their engagement on January 3.HTC...