let departments = [
 { name: 'CSE',    student: 7000},
 { name: 'EEE',    student: 2000},
 { name: 'CSIT',   student: 5000},
 { name: 'ME',     student: 4500},
 { name: 'ENGLISH',student: 6000},
 { name: 'BBA',    student: 8000},
 { name: 'LAW',    student: 2500}
];

let newDepartments = [];
for(let i=0; i<departments.length; i++){
  if(departments[i].student<=5000)
    newDepartments.push(departments[i]);
}
console.log(newDepartments);

///OUTPUT:
[
 { name: 'EEE',    student: 2000},
 { name: 'CSIT',   student: 5000},
 { name: 'ME',     student: 4500},
 { name: 'LAW',    student: 2500}
]