Varalaxmi Sarathkumar is taking a major step with “Saraswathi,” marking her directorial debut. She and her sister Pooja Sarathkumar produced the film under Dosa Diaries. The Central Board of Film Certification asked for a title modification, so it will now be called “S. Saraswathi.” The high-concept thriller has a runtime of 2 hours and 1 minute.