Daya and Abhijit are sitting in a restaurant when Daya spots his good friend Purvi. Daya introduces Abhijit to Purvi and her family and to the utter shock of the two cops , Purvi and her family accuses Abhijit of having murdered Purvis elder brother 15 years ago. The two cops are stunned. 15 years ago was the time when Abhijit had lost his memory and was incorporated into CID he was known as Arvind during that time. To Dayas dismay Abhijit has no memory of the alleged crime and he tells Daya that he may have or may not have killed Purvis elder brother. And even before the cops can get a grip of what is happening, Purvis younger brother also gets murdered. All suspicions point towards Abhijit as the younger brother was supposed to be carrying a proof against Abhijit . Abhijit resigns and a lot of tension mounts between Daya and Abhijit. If that was not enough, Purvi and Daya also begin to fall apart as Puruvi wants Daya to arrest Abhijit. But when a 15 year old tape comes up showing Abhijit holding knife and Purvis elder brother Sudheer dying , the cops realize that Abhijit is asking for help in the video and why would anyone shoot a video of a dying man instead of helping him? And so, the CID team gets down to tracking the man behind this 15 year old murder and why somebody wanted to trap Arvind/Abhijit during that time.
The first thrilling investigative series on Indian Television, is today one of the most popular shows on Sony Entertainment Television. Dramatic and absolutely unpredictable, C.I.D. has captivated viewers over the last eleven years and continues to keep audiences glued to their television sets with its thrilling plots and excitement. Also interwoven in its fast paced plots are the personal challenges that the C.I.D. team faces with non-stop adventure, tremendous pressure and risk, all in the name of duty.The series consists of hard-core police procedural stories dealing with investigation, detection and suspense. The protagonists of the serial are an elite group of police officers belonging to the Crime Investigation Department of the police force, led by ACP Pradyuman [played by the dynamic Shivaji Satam]. While the stories are plausible, there is an emphasis on dramatic plotting and technical complexities faced by the police. At every stage, the plot throws up intriguing twists and turns keeping the officers on the move as they track criminals, led by the smallest of clues.