[
  {"roll_number": "22CS003", "name": "Ananya Gupta", "department": "CSE", "dob": "12-05-2004", "batch_year": 2022},
  {"roll_number": "22CS004", "name": "Rohan Mehra", "department": "CSE", "dob": "30-08-2003", "batch_year": 2022}
]