Tollywood grapevine is abuzz that Pawan Kalyan will do a cameo in Charan's upcoming film Merupu under Dharani direction. It is worth mentioning here that Dharani directed Pawan's Bangaram and despite its failure Pawan admires Dharani's talent. Merupu producers made Annavaram with Pawan Kalyan in the past. Kajal is the heroine in this film. Merupu is expected to hit the screens for next Pongal.