The Diwali Special episode of Zee TV’s <a href=http://www.tellychakkar.com/news/star-studded-evening-sa-re-ga-ma-pa>Sa Re Ga Ma Pa 2012</a> is going to witness a bumper of a celebration with a festive atmosphere all around. Viewers will get to witness songs that welcome the Festival of Lights. And the episode will also be star-studded, with the cast of the movie <em>Son of Sardaar</em> gracing the show. Ajay Devgn and Sonakshi Sinha will come in as celebrity guests while Gurdass Mann will be coming in as the Mahaguru of the week.