naveen karanam - The documentation for Eventing Service for 6.6 is available at https://docs.couchbase.com/server/6.6/eventing/eventing-overview.html. Please go through these to get an understanding of Eventing Service.

> i dont have much knowledge on eventing functions to get indetail log for each CURD operations.

I could not quite follow what you mean by CURD (CRUD ?) operations.

Once you have had a chance to understand Eventing Service, please provide additional input on what you're looking for - The Eventing Engineering team and / or the Eventing PM (Jon Strabala) are available to help.

Naveen Karanam - I would recommend using  https://forums.couchbase.com For this sort of Q&A.  Please feel free to tag me in your forum question and I will directly respond promptly - but I do require you give a bit more detail as Srini noted.

In the docs are many examples (2-3) are great to learn and then mini guides called scriplets once you get the hang of Eventing.