If your brother is attempting criminal trespass on your property, which is currently let out, you may be able to involve the police with documentary evidence. However, the situation is complicated as the property title hasn't been transferred since your father's death 10 years ago, and a civil suit is pending. While you've been paying the bank loan, this doesn't grant exclusive ownership if the title is still jointly held by legal heirs. It's crucial to consult your lawyer who is aware of all the specific facts and circumstances.