Maanja Velu is all about a young man who revenges for the cruel death of his elder brother who was upright in his profession.
Karthik, yesteryear’s hero makes a comeback as an honest police officer, who takes on the most dreaded local don (Chandrasekar). The officer outsmarts the don in every respect but he is done in by a betrayal by a maverick youth (Karthik Kumar). Worse, the don successfully puts the blame of money laundering on the slain police officer.