Hi Arun MC,
Your “change object” action is setting the project name to it self.
The correct way is use retrieves to get the project selected, and then user the object retrieved in your change object activity.
This will solve your problem. But you can solve this by creating a reference from requests to Project. It will be more effective, and you will be able to do searches and retrives directly by this reference.
Greetingns, Rafael Carvalho!