Last year screenwriter SN Swamy revealed that the fifth installment of Mammootty's popular CBI series could hit the screens soon. But it's been a while since we heard an update on the long-delayed film. Also, according to the latest reports, pre-production work for the flick has started. At the same time, this news was disclosed by SN Swamy himself. "The project is very ongoing. Along with this, we are planning to start and release it only next year. There is no doubt about it. At the moment, I cannot give any information about when the shooting will begin. Apart from this, as Mammootty has done two other projects, we are waiting to complete them. ' Actress Koel Mallick shared this happy news Apart from this, Swamy had revealed that 'CBI' film will revolve around 'Basket Killing' and the production of this film could start this year. Meanwhile, a picture of director K Madhu and scriptwriter SN Swamy with crew members is currently on social media. There is expected to be an official announcement about this in the coming days. Along with this, CBI's first film Oru CBI Diary Kurippu 'was released in 1988 and a sequel, a Jagriti' came out in 1989 soon after. Along with this, Sethuram Iyer, the main character of Mammootty, who is a brilliant director, is one of the best films of his career. Nusrat Jahan reacted to the violence in Delhi As both the films were super hits, the makers made the third part of the film 'Sethuram Iyer CBI' and in 2004 a fourth part 'Nerian CBI', after a gap of 15 years. The third and fourth were average box-office hits. All four films were starred by K Madhu and written by SN Swamy, who promised that the fifth installment would be one of the best thrillers ever produced by Malayalam cinema. With this, Mammootty's next release could be the political thriller 'One' directed by Santosh Vishwanath. The film is slated to hit screens by the first week of April. Actress Aandrita Ray will be seen again with this actor