In the sentence, which is the topic, so no inversion requires area. Furthermore, the ultimate clause is an announcement, not an issue: which is working like a relative pronoun, not as a question phrase. Exactly the same would implement if it ended up an adverbial. Evaluate both of these sentences: https://donovanzenfz.blogolize.com/details-fiction-and-limitations-act-in-dha-karachi-pakistan-75511742