J. Alexander, known professionally as Mahendran, was an Indian film director, screenwriter and actor, known for his work in the Tamil film industry. Mahendran is regarded as one of the greatest filmmakers of Tamil cinema and has influenced numerous filmmakers, writers and actors after him. After entering the film industry as a screenwriter, writing scripts for nearly 26 films, including the widely influential Thangappathakkam (1974), he made an immediate impact