Manish Borundia

A team of Indian scientists at ISRO (Indian Space Research Organisation) take on the extraordinary task of successfully sending a satellite into the orbit of planet Mars in a country's maiden attempt.

Rajesh Shivakumar is a college hoodlum who has his first crush on Reena Joseph, who unfortunately, is engaged to be married to Rajiv Samuel, an Indian engineer settled abroad. In an effort to gain her heart, Maddy impersonates Rajiv and gets close to Reena, aided by his grandfather Subbuni and his crooked sidekick Chockalingam. However, the real Rajiv shows up, bringing a shocking end to Reena's romantic interlude.

College friends Jenny and Shiva part ways due to a misunderstanding. Although they are in love and realize they cannot live without each other, their egos prevent them from uniting.

Shankar(Prashanth) is a graduate of BSC nautical science, waiting for a job in the shipping industry. He is a tenant in the house of Banu(Simran), who is his good friend and confidante. They spend almost all their time together and she seeks him out as a refuge from her step brother Panneer(Raghuvaran), whom she dislikes but is forced to live together with. Shankar falls in love with Sarika(Laila). She reciprocates but problems and misunderstandings plague their romance.

Unemployed Shakthi Singh lives a poor lifestyle along with his widowed and ailing mother and a sister. His mother falls ill and gets admitted in hospital. While on his way to an interview with HSBC, Shakthi sees a beautiful girl, gets distracted and misses his bus - route No.12B. As a result he misses the interview, and ends up getting employed as a Garage Mechanic with Madan, his friend. He does meet with the same girl, gets to know her name is Jyotika, who lives a wealthy lifestyle with her mother, Sulo, while her dad is away on business. Both continue meeting not aware that her marriage has been arranged with Pratap. This story also depicts the possibility of Shakthi catching the 12B on time, attending the interview and getting hired, pursuing Jyotika in vain, and ending up in the arms of his co-worker, Priya. Both possibilities end up with Shakthi getting involved in a vehicle accident - and no guarantees that he will survive or wed Jyotika.

Kaasi learns the location of the people responsible for his parent's death and decides to seek revenge. However, unexpected circumstances cause Kaasi to become a gangster himself.