Database
[{"services":[{"location":[17.4374614,78.7482878]},{"location":[17.4020637,78.18400519324596]},{"location":[17.56208737,78.284005186526]},{"location":[17.5620637,78.3240051999554]}]}]
Query
db.collection.aggregate([{$unwind:"$services"},{$unwind:"$services.location"},{$project:{"_id":"$_id","location":"$services.location"}},{$group:{_id:"_id",loc:{$push:"$location"}}},{$project:{"_id":0,"locationArray":"$loc"}}])