Instead of telling *to whom you did what*, tell **what** you did.

So, instead of saying something like 

> I worked for the Indian Government Secret Branch to build a special
> agent hour tracking application at http://topsecret.india.gov/agents
> using Programming Language With A Known Security Hole and discontinued
> Frontend Framework with another security hole v1.2.3

you could tell it in this kind of manner:

> I worked on a confidential project that implements the backend using
> Programming Language with a frontend using Frontend Framework. Since
> it is under NDA, I am unable to share details. My tasks included
> implementing the login system and authentication, and I also created a
> HTML5 frontend with Bootstrap to create a modern and mobile-friendly
> user interface.*"

This way it is clear what you did and how you were involved, but no specifics are revealed that could be under NDA.