CBI Diary is a 1988 Telugu-language Action Drama film written by Prathap K Pothan and A. L. Narayanan. The movie is directed by Prathap K Pothan and Pratap Pothen and produced by T. G. Thyagarajan and G. Saravanan under the banner of Sathya Jyothi Films. Cbi diary stars Sathyaraj in the title role along with an ensemble cast including Lalu Alex, Anandraj, Thalapathi Dinesh, Janagaraj, Captain Raju and Oru Viral Krishna Rao. The screenplay is written by Pratap Pothen. The music was composed by Gangai Amaran. Cinematography was done by Ashok Kumar and editing by B. Lenin and V. T. Vijayan. It was released on 1st July 1988. Jeeva is a carefree unemployed youth living with his widowed mother and sister. When they are murdered, he seeks revenge.