nested meta query

$meta_query = array(
	'relation' => 'AND',
	array(
		'key'     => 'top_location_state_1',
		'value'   => 'rajsthan',
		'compare' => '=',
	),
	array(
		'key'     => 'top_location_city_1',
		'value'   => 'jaipur',
		'compare' => '=',
	),
);