Actor Allu Arjun on Friday joined the sets of upcoming Telugu entertainer "Duvvada Jagannadham" aka "DJ" for regular shooting. The project, which is being directed by Harish Shankar, stars Pooja Hegde as the female lead.In an official statement, the makers confirmed Arjun has joined the sets."1st day of shooting after a long gap! Been waiting for this. Good to be back," Arjun wrote on his Twitter page on Friday.Produced by Dil Raju, the project marks the reunion of Arjun and the producer after seven years. Their last outing together was 2008 Telugu drama "Parugu".Devi Sri Prasad has been roped in to compose music.