[{"_id":1,"type":"country","countryState":{"status":"Confirmed","prop":"high"}},{"_id":2,"type":"country","countryState":{"status":"Confirmed","prop":"low"}},{"_id":3,"type":"city","cityState":{"status":"Confirmed","prop":"high"}},{"_id":4,"type":"city","cityState":{"status":"Pending","prop":"low"}}]

db.collection.aggregate([{$match:{$or:[{"type":"country","countryState.status":"Confirmed","countryState.prop":"high"},{"type":{$ne:"country"}}]}}])