Rajasekhar is the loving elder stepbrother of Rajendran aka Raja and Ramu. After his elder step brother marriage, his wife Radha sends his brothers out when he goes to Madras. After some struggle the two young brothers were adopted by Rahim, a Muslim. Rajendran, the older of the two, toils and becomes a taxi driver to educate and bring up his brother. As a taxi driver, he does what's right, such as stopping drug dealers. There he meets Mary a Girl who is smuggling drugs and alcohol as a pregnant woman. After some time She change and falls for Raja. Raja believes His brother, to be the innocent and well-educated man, strays and gets mixed up with some wrong-doers. He marries a girl Manju from a wealthy family. The girl's uncle Chakravarthy is a smuggler who sells drugs using his older brother's lorries. Chakravarthy later kills his brother and blames Rajendran. Rajasekhar, the presiding judge, realizes that Rajendran is his long-lost brother. He then proceeds to have a heart attack but then researches all night and returns as a lawyer to save him and proves that Chakravarthy is the one who murdered his own brother. A fight ensues between Chakravarthy and Raja Raja defeats Chakravarthy. Radha apologies for her old attitude with Raja and Ramu.