Database
[{"organizationId":339975,"domains":[{"application":"ABC","activeInd":true,"subdomain":["URL1","url2"]},{"application":"mno","activeInd":false,"subdomain":["URL3","url4"]},{"application":"pqr","activeInd":false,"subdomain":["URL","url6"]},{"application":"egh","activeInd":true,"subdomain":["URL11","url16"]}]}]
Query
db.collection.aggregate([{$match:{organizationId:339975}},{$project:{domains:{$filter:{input:"$domains",as:"item",cond:{$eq:["$$item.activeInd",true]}}}}}])