$nin is not working in aggregation for _id where I used aggregation for latitute and longitude wise search
Welcome to the MongoDB Community forums 
The query you posted doesn’t look like a valid MongoDB aggregation query. Are you using a specific driver or product?
In order to better understand your question, it would be helpful if you could provide the following information:
- A sample document from the collection
- The version of MongoDB you are using
- Your complete aggregation query
- The error message you received after executing the query
- If possible, your expected output.
Best,
Kushagra