After 12 years in the film industry and a mixed bag of roles, his Thevan in Bramayugam may well be Arjun Ashokan’s breakout role. “There is not much to really go back and do ‘homework’ or to research,” says Arjun over the phone from the set of Anand Sreebala. As the hapless paanan trapped in Kodumon Potti’s dilapidated mana, he …