Both Bharathiraja and Balu Mahendra are great directors and competitors at the peak of their careers. Their films have always been masterpieces and most of them were massive hits. But, instead of rivalry, the directors share a good friendship, something not known to the outer world so far. Bharathiraja, who was present at a recent audio launch, revealed that he is very proud of Balu Mahendra, as his assistant directors have proved themselves and he also said that he was amazed several times, because of his simplicity not only in his personal life, but also in the way he handles any kind of shoot.