Nandamuri Balakrishna seems to be taking a big risk for his prestigious landmark 100th film. After several permutations and combinations, the latest buzz is that, Balakrishna has agreed to work with a flop director , who could not deliver a single hit for last few years, Even his last relase with Young Hero Ram Charan have turned into a bomb at Box Office.He is none other than Krishna vamsi, Balakrishna has reportedly has asked the director Krishna Vamsi to prepare a subject for his 100th film.