Venkatesh's 'Nagavalli' that is a remake of 'Aaptha Rakshaka' (sequel to Superstar Rajnikanth's 'Chandramukhi') was released in December. Though the film opened with mediocre response in box office, it managed to make it bigger in later point of time. Well, the film has now successfully completed 50 days and is still going stronger at the box office. Much elated, producer Bellamkonda Suresh says that all credit goes to director P. Vasu for having done a brilliant job. The producer adds that though the Kannada version had everything best catered to the tastes of audiences, P. Vasu made more changes to the remake version. The producer was surprised to receive call from Superstar Rajnikanth as the virtuoso appreciated him for having done a good job with production values.