Hari is a Civil Engineer at Kochi. Hari believes in love marriage while his mother is forcing him to get married soon. Hari decides to find out a girl to fall in love with and he is joined by Manu and Bhai. The resulting interesting incidents are plotted in ‘Happy Wedding’. Siju Wilson does Hari and the movie 'Happy Wedding' narrates the funny events happening during his wedding. The film features a group of youngsters who shot to fame with the super hit movie 'Premam'. Siju Wilson, Sharafudheen, Soubin Shahir, and Justin John do the main roles. The movie is directed by debutant Omar. The cast also includes Saiju Kurup, Sudhi Koppa, Niyaz Bekkar, Sivaji Guruvayoor, Vinod Kovoor, Aby, Tesni Khan, and Ambika Mohan. The camera is handled by Sinu Sidharth. The lyrics by Harinarayanan are tuned by Arun Muraleedharan. ‘Happy Wedding’ is produced by Nazir Ali under the banner of Ozone Productions.