The search for "Tamil 73 420" refers to the legendary Tamil actor , who is widely known for his 1997 comedy classic Chachi 420 . The number "73" likely refers to the year 1973 , which was a pivotal year in his career as he transitioned into lead and antagonist roles in major Tamil films like Arangetram and Sollathaan Ninaikkiren . Kamal Haasan's 1973 Filmography