When Subhash falls down onto the final ledge, he was slipping slightly and stopped on the edge, despite the platform being slippery. However, in an interview with the director, it's mentioned that in the real life incident, the belt which Subhash borrowed from his brother had latched on to a rock, which prevented him from slipping further down.
This movie is based on real life incidents and the real archive images are shown at the end of the movie.
The caves were first recorded in 1821 by British officer B.S. Ward, who named it The Devil's Kitchen.
The rival tug of war gang that the screen Manjummel boys challenge in the opening sequence are actually the real-life Manjummel boys.
Kamal Hassan and his film Guna (1991) has been addressed many a times in the film.As the caves came to be known as Guna caves after the film was shot here and became a tourist attraction.