Continuously getting - java.lang.IllegalArgumentException: Limit of total fields [1000] in index has been exceeded error

Yes. I am looking for solution reduce unwanted fields. I am not in favour to increase total fields.
Please see the given screenshot. There were 2.2k fields into index. I am talking about these wanted fields which are detected as fields.

These names are part of request url & i don't want to be in index.

Can I define selective fields for index into configuration ? Let me know if more info require. plz help.