The problem could be with the Datatype of the input paramter to the SP
If the second parameter to the SP is any varchar, then you need to modify the SP calling statement to
EXEC [SP_name] 'lokesh',"'" + YEAR(GETDATE()) + "'"
Anyway, the otherway of getting year part is as follows...
DATEPART(YEAR, GETDATE())
ie, your query would be as
EXEC [SP_name] 'lokesh',"'" + DATEPART(YEAR, GETDATE()) + "'"