Hello, Hammad khan, and welcome to the Grammar Exchange.
The expression is "bring to a close":
- If there are no other issues to discuss, we can bring this meeting to a close.
Unlike close, when used with the verb "bring" closure is a non-count noun. Also, bring closure to something means something else, as can be seen in this example:
- I felt a sincere conversation would bring closure to our relationship.
"bring closure to something" does not mean, like "bring to a close," merely "to put an end to something," but rather "to reach a sense of comfort after an unpleasant experience" (in the example above, after a difficult relationship).