Database
[{"priceDetails":[{"cities":[{"cityId":"64a297a8bb1dc440ccef6c3c","name":"Bhopal","prices":"1200","commissionType":"PERCENTAGE","commissionValue":"20","_id":"64a2990b344e735476fb54ca"}]}]}]
Query
db.collection.find({},{_id:0,priceDetails:{$first:"$priceDetails.cities"}})