Elaan is a declaration of war against the reign of terror unleashed by the ganglords .  The story revolves around an upright and principled Police Officer , A.C.P. Ramakant Chaudhary whose eldest son Vikas is killed in a pre-planned accident .  But the A.C.P. is unable to nab the culprits for want of valid evidence .  Consequently , the A.C.P. , his wife Revati and younger son Vishal are griefstricken over the loss of young Vikas .  While the atmosphere in the city is already vitiated by the atrocities of ganglords Baba Khan and Manna Shetty who enjoy the support of some unscrupulous police personnel , the A.C.P. vows to make the ruthless gangsters bite the dust , without taking the law in his own hands .  On the other hand , Vishal an angry young man , can not stand this injustice since the police had failed to arrest his brother's killers , and he silently resents his A.C.P father's inaction in dealing with the culprits .  The ideologies of the father and son clash - Which lead to a conflict between a dutiful father and a reckless son .  The only one who understands the agony of Vishal is Mohini , the daughter of head constable Devkinandan Sharma .  The day comes when Vishal confronts Baba Khan and Manna Shetty Which leads to tension and gory situation for the A.C.P. , as the ganglords threaten to eliminate the A.C.P. as well as his wife Revati and son Vishal . 
Who plays the main role as an upright and principled Police Officer in this story?
A.C.P. Ramakant Chaudhary