params = {
        "name" : "NIFTY",
        "expirydate" : "28NOV2024"
    }

on requesting the above data, this is the response I'm getting

Response: {
'status': False,
'message': 'No Data Available',
'errorcode': 'AB9019',
'data': None
}

Has the request structure changed or I'm making some silly mistake.
I tried for other instruments too by referring https://margincalculator.angelbroking.com/OpenAPI_File/files/OpenAPIScripMaster.json
to cross check the name and expirydate but was showing the same error.