Best Investigation movies on hotstar

Actors : Nassar, Sukumaran, Mohanlal, Renjini,
Directors : Mohan,

A police officer tries to uncover and stop an unknown serial killer who sniped three victims and plans for a fourth one.

Actors : Jai Jagadish, Mukhyamantri Chandru, Aditya, Ashika Somashekar,
Directors : Balu Chandrashekar,

ACP Bala investigates the murder case of a prominent figure known as Contractor Vishwas Narayan and stumbles on many suspects, who is the real culprit?

Actors : Subhrajit Dutta, June Malia, Riya Banik, Koyel Mallick,
Directors : Arindam Sil,

Pragya Paromita, fondly called Mitin, is appointed by a Parsi couple to investigate their eight-year-old son's kidnapping. Mitin has done economics from Presidency and balances her detective and homemaker lives equally well.

Actors : Ramachandran, Mammootty, Gopi, Jayabharati,
Directors : K.N. Sasidharan,

Film that opens with a missing of a girl who later identified to be killed by someone who is close to her. The film is in a format of investigation thriller giving importance to the plot rather to the characters.

Actors : Tarun Bose, Sujit Kumar, Biswajeet, Mala Sinha,
Directors : Moni Bhattacharjee,

Inspector Shankar (Biswajeet) is assigned to investigate the mysterious death of Sunder Singh (Sujit Kumar). During this process, he meets a beautiful young and rich heiress named Sheil (...