Pokkiri Raja (1982)

Laden with laughs, this suspenseful romantic drama follows the trials and triumphs in the life of Ramesh (Rajinikanth), an honest and hard-working young man. When he starts managing the office of an industrialist who strongly suspects his relatives to be looting him, he begins investigations into suspicious activities.

Ramesh finds the culprit and keeps a tight leash on everything happening in the office, thereby earning the wrath of the industrialist's relatives. Ramesh and Sridevi (the industrialist's daughter) initially find themselves at loggerheads, but eventually fall in love with each other. The industrialist is happy about this development until he sees Ramesh cheating on his daughter. He fires Ramesh the very same day.

The industrialist is murdered and Sridevi also sees Ramesh in her house that same night. Ramesh is dragged to court and is shortly framed for murder. Sridevi is upset, and the ill-intentioned relatives start closing their net around her, forcing her to marry Y. G. Mahendran (the son of two of the industrialist's relatives).

In the meantime, the grief-stricken Ramesh meets another person named Raja (also Rajinikanth) in jail who looks exactly like him. Together Ramesh and Raja plan to punish the culprits and set the record straight.