@[587671:Priyank1432] while the "a" is absolutely required, I am pretty sure I have seen grammatical errors being overlooked in previous solutions. They usually mark an outright wrong usage as the correct answer, something like "deal a light blow", and only if there are no wrong phrases do they bring up the grammatical angle. I think this question had an option where the phrasal verb was not correct.. Khair, aayega kal solution, pata lag jaayega.