[{"_id":ObjectId("6067640da9a907175caaca34"),"id":101,"name":"Planner","status":"A","height":12,"tags":["mens","womens"],"warehouses":[{"name":"Phoenix","quantity":25},{"name":"Quickshift","quantity":15},{"name":"Poona","quantity":10}]}]

db.collection.find({"name":"Planner","warehouses":{"$elemMatch":{"quantity":{$gt:20}}}},{"warehouses.$":1})