As pointed out in #2, if you cannot DEFINE what is to be done and what is the target to be achieved, it would be difficult to help. A "one line definition" cannot be a final year project.
We are missing things such as,
Definition
Aim
Objectives
(Possible) Implementation Idea/s
etc.
he mentioned it in the header .
"An efficient design of digital down converter using cordic algorithm in parallel pipe"
now about the question, once i got the code from internet , but its not pipeline, once you get it you can do pipe lining easily.(i forgot where i got it, please google it).
more important thing about cordic algorithm is to understand it.. ( about input ranges, how you setting the register width etc)
trust me , if you got the right code then also you wont know how to test it &what is coming out unless you study about cordic and how it works and i dont have the code, you can get it if you search for 1 day.