CHENNAI: DMK chief M Karunanidhi has ruled out the possibility of his son and party treasurer M K Stalin becoming the Chief Minister of Tamil Nadu if the party comes to power. "Mr Stalin himself has not only made it clear that he is not interested in becoming the Chief Minister, but has also reiterated that DMK leader will be the Chief Minister," Karunanidhi said. He said his son can be the CM if "something happens to me." Karuna is contesting the state elections for a record 13th time, and a second consecutive time from his home constituency of Tiruvarur.