In your sentence, that's the subject, so no inversion can take area. Furthermore, the final clause is a statement, not a matter: which happens to be working as a relative pronoun, not as a question word. The exact same would use if it were an adverbial. Look at these two https://criminallawyerinkarachi16793.pages10.com/the-best-side-of-cyber-crime-lawyer-karachi-71845847