Wikipedia
Pattanapravesham (English: Town Entry) is a 1988 Malayalam screwball comedy film directed by Sathyan Anthikkad and written by Sreenivasan. It is the sequel to Nadodikkattu and follows the story of Dasan ( Mohanlal) and Vijayan ( Sreenivasan) who are now CIDs and are 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, C.I.D. Ramdas ( Mohanlal) and C.I.D. Vijayan ( Sreenivasan) 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) who is 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.