The Hyderabad police have registered a case against a Hyderabad Member of Parliament for defying curfew orders, even as it arrested 165 people in connection with communal clashes that broke out in Old City area last week."A case has been registered against Hyderabad MP and MIM Chief Asaduddin Owaisi and seven others for staging a protest in front of the Charminar police station on Sunday by defying curfew orders," ACP (Coordination) Dwarka Thirumala Rao said.