remove obj unmatched obj from array

[0:{app:"xyz",appId:"123"appfunctions:[0:{name:"tr",class:"12",Ismenu:"Y"},

1:{name:"tr",class:"12",Ismenu:"N"},2:{name:"tr",class:"123",Ismenu:"N"}]

0:{app:"abc",appId:"1234"appfunctions:[0:{name:"tsr",class:"12",Ismenu:"N"},

1:{name:"tr",class:"12",Ismenu:"N"},2:{name:"tr",class:"123",Ismenu:"Y"}]

0:{app:"test",appId:"123"appfunctions:[0:{name:"ter",class:"12",Ismenu:"Y"},

1:{name:"tsr",class:"12",Ismenu:"N"},2:{name:"tsr",class:"123",Ismenu:"N"}]

} ]

i need ismenu="Y" in child node with respect to parent

[0:{app:"xyz",appId:"123"appfunctions:[0:{name:"tr",class:"12",Ismenu:"Y"}]

1:{app:"abc",appId:"1234"appfunctions:[2:{name:"tr",class:"123",Ismenu:"Y"}]},

2:{app:"test",appId:"123"appfunctions:[0:{name:"ter",class:"12",Ismenu:"Y"}]}

]