Pattanapravesham () is a 1988 Indian Malayalam-language detective comedy film directed by Sathyan Anthikad and written by Sreenivasan. It stars Mohanlal, Sreenivasan, Karamana Janardhanan Nair, Ambika and Thilakan in the lead roles. It is a sequel to the 1987 film Nadodikkattu, Mohanlal and Sreenivasan reprises their roles as Ramdas / Dasan and Vijayan, respectively. The plot follows Dasan and Vijayan who are now C.I.Ds in Tamil Nadu Police, who are charged with investigating a homicide case. The film was produced by Siyad Koker under the banner of Kokers Films. Just six months after the events of the prequel, CIDs Ramdas and Vijayan are called to Kerala to solve the murder of a police officer. The two incompetent and clueless men find themselves facing a dangerous crime syndicate led by Prabhakaran Thampi (Karamana Janardanan Nair) that deals in drug trafficking. In addition, Anandan Nambiar (Thilakan), the man they put behind bars in Nadodikkattu escapes from jail. The film was a critical and commercial success. In 1990, Priyadarshan made a sequel titled Akkare Akkare Akkare. Plot Ashoka Varma is a police officer trying to prevent smuggling. On the night he found the crucial evidence needed, he was murdered in his house. To find the murderer, Kerala Home Minister invites CID Ramdas / Dasan and Vijayan to Kerala. On the day they arrived, CI takes them to their residence. They mistake Damu their cook for the murderer and beat him up. Due to Damu's injury, they take their supper in a hotel. In that hotel, Ramdas overhears a conversation and mistakes Isaac and Prof. Vidyadharan, two bird watchers, as the murderers. After the supper, Dasan and Vijayan walk along through streets and run into Isaac. When they try to follow him, they are shot at and ambushed by a group of villains and a fight breaks out. After the fight, they are saved by Prabhakaran Thampi, the real smuggler, who pretends to be a mill owner involved in a lot of social service projects. Prabhakaran Thampi advises Dasan and Vijayan to withdraw from the investigation told that there are many officers, who were investigating this case, have been murdered and that he does not want the duo to share their fare. Dasan and Vijayan are frightened but they put on a brave face before him. Dasan and Vijayan decide to go undercover and start the investigation. With the help of Dasan's idea, they