Cochin Express is a 1967 India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

n film directed by M. Krishnan Nair

M. Krishnan Nair (director)

M. Krishnan Nair was an Indian film director of Malayalam films. He directed over 100 films. His son K...

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This is an investigative thriller. The main actors in the movie are Prem Nazir

Prem Nazir

Abdul Khader , better known by his stage name Prem Nazir , was an Indian film actor. He is considered one of the all time super stars in Malayalam cinema...

 and Adoor Bhasi

Adoor Bhasi

Adoor Bhasi was an Indian film actor and film director from Kerala. Adoor Bhasi was almost always cast as the man who stands next to the hero. His hilarious actions and roles became the cynosure of comic scenes in the Malayalam films of the 1950s, 60s, 70s and 80s. He is also famous for his...

.

Prem Nazir

Prem Nazir

Abdul Khader , better known by his stage name Prem Nazir , was an Indian film actor. He is considered one of the all time super stars in Malayalam cinema...

 is Police Officer Rajan who is in charge of investigating a murder that happened in Cochin Express from Madras

Chennai

Chennai , formerly known as Madras or Madarasapatinam , is the capital city of the Indian state of Tamil Nadu, located on the Coromandel Coast off the Bay of Bengal. Chennai is the fourth most populous metropolitan area and the sixth most populous city in India...

 to Cochin. Adoor Bhasi

Adoor Bhasi

Adoor Bhasi was an Indian film actor and film director from Kerala. Adoor Bhasi was almost always cast as the man who stands next to the hero. His hilarious actions and roles became the cynosure of comic scenes in the Malayalam films of the 1950s, 60s, 70s and 80s. He is also famous for his...

is Unni Kannan Nair who was a passenger in the same compartment where the murder happened and also he is the only person who saw a lady passenger that is suspected behind the murder.