Why is "the" necessary. why not "Peter does not want a knife." Knife is a generic object. There arany knives. There is no unique knife called "The knife".
Then you would need “ek” in the Hindi sentence.
Since they didn't mention "ek chakoo" then it means they are talking about a specific one
Why is "ko" necessary?
In Hindi you want 'to' something. "मुझे खाना चाहिए" literally means "To me food want", but it's the equivalent of "I want food".
Is this he idea? To Peter the knife is not wanted
Peter does not want knife
batesita, ko is a connecting word.
it connects objects and subjects and also indicate the the action/response of the subject.
It is written "chaku" here which is singular so that is why I wrote knife.
My answer is correct.