I have download new plugins from net it is in dll form and a file src how can i add these plugins into ollydbg
Plz help me out

...read the help file of OllyDBG? maybe you don't know, but you can access it right under the 'help' menu of Olly...
...in case you cant select the appropriate voice, it is the 'plugins' entry.

If OP couldn't figure that out, I wonder how he's going to use OllyDbg...