Not possible with current design. Idea can be raised for same.
Vinayak Navada - unfortunately it's not possible. Have already been asked before, including myself (Is it possible to display the SRM Request Number on Checkout - Confirmation page? )
There's also an idea raised about it: Display the SRM id instead of DWP id after creation of a service
So vote UP...
Thanks Emmanuel and Sidhdesh. I have upvoted for the idea.