Hi @i_am_sahil,
Have you tried leaving out the “idProperty”: “hs_object_id” line?
According to to the CRM API documentation, “idProperty” is only required when you are using something other than the “hs_object_id”:
By default, the id values in the request refer to the record ID (hs_object_id), so the idProperty parameter is not required when retrieving by record ID. If you’re using email or a custom unique value property to retrieve contacts, you must include the idProperty parameter.