Opening to majorly positive reviews on the Diwali day, Sivakarthikeyan's Amaran has struck gold at the box-office too.

Raaj Kamal Films International (RKFI), the film's production house, revealed that the film has earned Rs 42.3 crores on its opening day worldwide.

The CE review of the film reads, "Sivakarthikeyan will no doubt secure many plaudits for his physical transformation, for owning the action scenes and the motivational speeches… but I caught myself being especially impressed with how he seemed to radiate an effortless sense of goodness and vulnerability, despite his job requiring him to be an alpha male at all times. Watch him tear up as he pleads for a teammate’s life. Watch the joy in his eyes during his OTA ceremony, with Indhu smiling softly in the background in a beautifully composed shot. Watch him hug Indhu and daughter and walk away, but change his mind to return to steal another embrace from them both. These are powerful, heartfelt moments."

The Rajkumar Periasamy film that stars Sivakarthikeyan and Sai Pallavi in the lead, also has Bhuvan Arora as Sepoy Vikram Singh and Rahul Bose as Mukund's Commanding Officer, Colonel Amit Singh Dabas.

Amaran tells the real story of the late Major Mukund, a recipient of Ashoka Chakra. Mukund received the honor for his "exemplary leadership skills, raw courage and swift action" while fighting militants in Kashmir in 2014.