Following the success of '' Kumki '' , Prabhu Solomon took a break and went on a recce to the coastal South Indian town of Nagapattinam to get inspired for a story set on the backdrop of the 2004 Indian Ocean earthquake and tsunami . He gathered real-life stories of survival and intertwined them into his script . Subsequently , he launched his next production '' Kayal '' with newcomers Chandran and Anandhi in the title roles , and shot for the film for a year . Scenes were shot for several days underwater , with the team often doing up to ten hours a day in knee-length depths of water . The film completed shoot after 85 days in May 2014 , with the director announcing that post-production would be extensive as a result of impending VFX works . During the music release of the film in November 2014 , Prabhu Solomon revealed more details about the production of the film , noting that the climax was shot first to ensure graphic works depicting the tsunami could have as much time spent on it as possible . He went on to add that it was his costliest production till date and the film was made at a cost of 15 crore , with the special effects , notably the use of 7.1 Atmos mix for the climax , being particularly expensive
2004 Indian Ocean earthquake and tsunami
2004 Indian Ocean earthquake and tsunami
Prabhu Solomon