Question

From where I watch ymggk in canada, the episode is one day behind. So I just watched the episode where "karan" vomitted from eating curry and rice. Anyways my question is that shouldn't karishma easily know that "karan" is not really karan but actually sid? because karan didnt really have a friend named karishma from college, abha just made that up and karishma played along. The real karan never had a friend named karishma. So karishma should think that "wait i never knew a karan so how can he act like we're friends"?


Right?