The makers of actor Allu Sirish-starrer Telugu family drama "Srirastu Subhamastu" unveiled the first look poster of the film on Sunday on the occasion of Valentine's Day.The poster was officially released on social media.Directed by Parasuram, the film also stars Lavanya Tripathi, Prakash Raj, Rao Ramesh, Tanikella Bharani and Sumalatha in important roles.According to Sirish, this film will be a game changer for his career."This is a big film. I am sure that it will be a game changer for my career. This is the kind of film that will bring scores of families to the cinemas again. I've worked so far only in love stories, but this is a family drama," Sirish told IANS.Explaining his character in detail, he said: "I couldn't get the pulse of all the characters that I've played so far. However, the character in this film is very close to my inner self and that got me excited. I could easily relate to it".