In addition, it was dubbed into Malayalam. Happy Days was released on 28 September 2007 in the United States and 2 October 2007 in India.
By partnering with Pantaloon Group, he saved another Rs 1 million in the costumes budget. As most of the shooting took place in the college, there was no need to construct sets. By casting newcomers, he cut expenses to a reasonable level. Sekhar Kammula cut costs of producing the film through various methods. Apparently, after watching Anand, the board granted their permission to shoot the film. He had to arrange a special screening of Anand to the chairman of CBIT and its board members to convince them for an on-site shoot. Sekhar is an alumnus of CBIT, and he found it to be a suitable location. In fact, the opening scene between Appu and Rajesh was shot in MGIT with select scenes shot outdoors. Most of the movie was shot at Chaitanya Bharathi Institute of Technology (CBIT) and Mahatma Gandhi Institute of Technology MGIT. Damidi Kamalakar Reddy, founding Secretary and Treasurer of Chaitanya Engineering College, acted as a Professor/Lecturer in a brief cameo role. He sent his photograph by e-mail in response to advertisement and subsequently sent a video clip of himself enacting certain scenes along with a song via Google Video. Varun Sandesh did not audition for his role. The main lead of the film was selected using the internet without any direct audition. He had to cast Tamannaah as a suitable actress was not found.
Sekhar Kammula held a talent search at Big FM and and managed to select seven of the eight lead actors.