The film became the highest-grossing Malayalam film ever, breaking the record of Rajamanikyam (2005). However, Classmates (2006) released in the same year broke the record of Rasathanthram.
Rasathanthram is the first screenplay written by Sathyan Anthikkad, he decided to write it himself since his regular writers were busy at that time. He continued to write his own screenplays for the next couple of films as well.