Cast : Suresh Gopi, Kavya Madhavan, Siddique, Rajan P Dev. Vijayakumar, Suresh Krishna, Shammi Thilakan, Subair, Kollam Thulasi, Anoop Chandran, Urmila Unni, Madhupal, Niaz, Poornima Anand, Sajithabeti, Suja, Suja Karthika.
Cinematography: Anandakuttan
Screenplay: AK Sajan
Story/Writer: AK Sajan
Art Direction: Girish Menon
Souparnika Express is a train on its maiden run between Chennai and Mangalore. On board are three girls, each famous in her own way. Naadia is India's most famous rifle shooter. Shreyamani is a reporter with NDTV. Thulasimani is a well known dancer. The three board the train at Coimbatore. Shortly before it roles into Kerala, the three girls are killed. When two years of enquiry produces no results, Sharafudeen Tharamasi, SP, Railway Anti-Corruption Task Force is put in charge of the case. His enquiry finally unravels the mystery behind the murders.

Suresh Gopi plays the lead role of Sharafudeen Tharamasi, while Kavya Madhavan does the role of Naadiya. The film is scripted by AK Sajan, whose last effort was Chinthamani Kola Case. While the film is an investigative thriller with considerable amount of suspense (as can be expected when AK Sajan teams up with Director K Madhu), it also delves into the lives of the three victims. The film will be released under the Krishna Kripa banner, and is expected to hit the screens in the third week of July.

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K Madhu has shot to fame, two decades ago, all by making thrillers, either investigative or political ones. Every films that are tied to his name tag like the very famous C B I series, carries this word and mood which essentially gives a concise description of his panorama of films. But now he is trying on something which seems a little different. This time trying to make another investigative thriller shot at length on a moving train. Titled Nadiya Kollapeta Rathri, the film seems to be a racy murder mystery inspired from Murder on Orient Express, the classic Agatha Christi thriller.

Nadiya Kollapeta Rathri unveils the mystery behind three murders that take place on a train. Action hero Suresh Gopi is once again becoming a part of K. Madhu films playing the lead role of an investigative Railway Protection Force officer.

The title character of this A.K Sajan story is an Indian international shooter Nadiya, who is murdered on a train which is on its inaugural run between Chennai and Mangalore. Nadhiya was planning to alight from flight to Kerala but as she missed it, she plans to make the travel in Sauparnika Express which was flagged of the same day by the central minister. The famous dancer Thulasi many and television reporter Shreya Mariya were also traveling in the same train. Shreya was a reporter known for her sharp reporting styles and was at the same time a problem maker for all politicians.

As the train entered madhukkara station near Kerala border, attender Sreenivasan was the first one who noticed that Nadhiya had been killed in the train. And within hours came the news about the death of Shreya Mariya and Thulasimani, one of their bodies found on a railway track. The murders created quite a commotion, as the people involved were all, some of the biggest celebrities. As the murders happened in the Coimbatore Railway division, the charges of investigation were on S.I.Mayilvaahanam Kathireshan. But as he has retired from service before the final investigations, nothing was made clear about the murders.

As the railway realized the need of the setting of a new force for the protection of the celebrity passengers, they set up one in the name --RASK. The force was headed by Sharafuddeen Taramasi IPS, an encounter specialist from the Railway Anti-Criminal Task Force, who was entrusted the case, two years after the actual incidents happened. The plot follows how he clears off the mystery behind the three murders which happened on the same train. Suresh Gopi is Sharafuddeen Thamaresy. Kavya Madhavan appears as Nadhiya while Suja Karthika is Thulasimani in the film.

The film has Camera is by K. Madhu regular, Anandakuttan and editing by P C Mohan. The cast include Siddique, Rajan P Dev, Shammy Thilakan, Niyas, Subair, Suresh Krishna, Vijayakumar, Suja Karthika, Urmila Unni and Poornima. The film which is nearing completion is being shot at Coimbatore, Palghat and Kochi. The film produced under the banner of Krishnakripa, will be released by Dream Team.