A mathematician genius, Mathi, has another identity, Cobra, who commits intelligent crimes using math.

The film begins in a city in Andhra, where the CBI raid a rich local politician’s house. The Chief Officer is shown to be Aadhi (Jayam Ravi), who orders to seize all illegal items found. The politician is arrested, but he requests to come to the CBI office in his own car. It is later revealed that no CBI raid was planned on his house and all that happened was a hoax. The politician gets angry and orders to hunt down the men who cheated him in the name of CBI.

The movie takes place in a village in the Salem District where various sculptors come to make a statue. The village head (Sarath Babu) and his wife Rajeshwari (Roja) try to bring in sculptors to complete the statue. However, anyone who comes for the job is driven out of the village by a ghost. The villagers decide to entrust the job to another big man Devanna Gounder (Aadukalam Naren). Trouble erupts between the two families. A flashback reveals the reason for this. Vettri (Ramki) and Masaani (Iniya) make their appearances, where the audience learns of their love for one another. Agitated, Rajeshwari kills Vettri. Masaani dies delivering a boy named Vishva (Akhil). Vishva grows up and comes to the village to finish the task.

Sera (Krishna) is a man who earns his living by retrieving dead bodies from Kodaikanal’s Green Valley View suicide point. Nandu (Karunas), Shanmugam (Thambi Ramaiah), and a mute friend are part of Sera’s crew. Sera meets Kavitha (Bindu Madhavi) when he and his crew retrieve her sister’s body from a gully after her sister had committed suicide with her boyfriend. Kavitha falls in love with Sera. A parallel plot is of Ayya (Jayaprakash), who trades in stolen tea, with corrupt officials turning a blind eye to his activities. Iyya’s gang kills 4 police officers during a raid and throws the dead bodies from the suicide point. Ayya, who knows Shanmugam, threatens him not to retrieve the bodies of the police officers. Fearing for their lives, Shanmugam tries to convince Sera not to retrieve the bodies. Brushing aside Shanmugam’s fears, Sera’s crew retrieves the bodies. After retrieving the bodies, Sera informs the police of the murder by Ayya, resulting in Ayya’s arrest. Ayya comes out in bail, and his men kill Shanmugam, Nandu, and Sera’s mute friend. Sera kills Ayya’s henchmen. Kavitha consoles Sera, and they both decide to run away from Kodaikanal to lead a peaceful life. They both board a jeep, and on the way, Ayya arrives with his men, and they start attacking Sera. Sera kills most of them and also Ayya. He rushes back to the jeep but is shocked to see Kavitha dead. Sera understands that Kavitha was accidentally stabbed to death during the fight. Sera cries loud, jumps from the mountain, and kills himself along with Kavitha’s dead body.

Gandharwa is a unique story of a person who met with a incident which have changed his life and lost his identity . His Fight with Himself is great. They are much more surprising elements in Gandharwa.

An alcoholic professor is sent to a juvenile school, where he clashes with a gangster, who uses the children of the school for criminal activities.

Thiru, a local gangster, falls in love with Charu, an NGO worker, and decides to marry her. He changes his profession and starts a new life, but the police arrest him for his earlier crimes.

Almost half a century ago, a remote village in the middle of a tropical rainforest starts witnessing a series of unexplainable events which they attribute to the supernatural.

After the passing away of her parents in an automobile accident, Radhika moves in to live with her aunt, Malathi, and studies Zoology in Lexicon Science College. She is very friendly with Basu Subtankar and both, along with other girls, create quite a ruckus, much to the chagrin of their teachers and the College Principal. In addition to this, they are also staunch rivals of NRI Geetha Damodar, who wants to be the Student Chair. Radhika competes, there is a tie, but the teachers overturn Radhika’s votes due to many complaints against her, and elect Geetha as the Chair. When Malathi wants Radhika to wed, both girls create a fictional character, name him Ramesh, and tell Malathi that Radhika is in love with Ramesh. Complications arise when a real male named Ramesh surfaces, is subsequently killed, and the duo become suspects amidst a web of deceit and lies created by one of four persons in their lives, namely Malati herself, Geetha, a mysterious woman who sometimes poses as Ramesh’s mother and other times as Geetha’s guardian, and an fourth unknown person – leading the duo to a roller-coaster ride with both the police and the real killer on their tails.

Maaran (Sathyaraj) is a clerk in the district collector’s office. His life centres around his loving wife (Seetha), his son (Raghuvannan), and his daughter (Preethi Varma). Soft-spoken, and a Gandhian to the hilt, Maaran does not stand by any smear on the Mahatma’s name. Being a staunch patriot, he had even named his son Sudhandhiram.

The film plot is made revolving around the robbery by a gang of hackers and cyber criminals on the Independence Day of India.

Shiva (Mahesh Babu), an officer in the Intelligence Bureau office, spies on people’s calls and messages to help them if needed. He developed a software to listen to the needing ones by tracking their phones. On the night of 16 March, he listens to Charlie/Shalini (Rakul Preet Singh) talking about her wish on getting 98% in her exams from 96% to get a USA scholarship with her friend. In order to do that, she decides to get concentration by dating with a guy. Shiva follows her, and she starts to fall in love, but he does not.
On the night of 28 April, he listens in on a young girl asking her friend for help as she is alone in her house and scared because there is no electricity in her house whilst everyone else on her street has it. Shiva sends his friend, new police constable Renuka (Himaja), to help the girl. However the next day, a news channel declares that the two women had been killed. They were undressed, chopped into different pieces, and were mixed together. Shiva goes to the crime scene and finds it has been a brutal murder. He resigned from his job stating, “I didn’t help them and I should’ve never sent out Renuka,” but his father (Jayaprakash) encourages him to find the murderer. To find out who murdered them, he sets out to ‘spy’ the girl’s chats and whereabouts.