Synopsis-Aaru in this movie Aarumugam, nicknamed Aaru (Surya Sivakumar), is a thug and
dealmaker with a band of boys handpicked from the slums of Chennai. Aaru's mentor Viswanathan
(Ashish Vidyarthi) protects him, because Aaru gives him the violent undercover he needs. When
Vishwanthan declares war on his bitter rival Reddy (Jaiparakash Reddy), Aaru assists him. But
Vishwanthan betrays him, resulting in the deaths of Aaru's subordinates.
Aaru thus realizes Viswanathan's true, evil nature and vows to destroy his power. There is also a
subplot involving Aaru's romance with the college student Maha (Trisha Krishnan).