CA in service & CS.             dipmaj@ 
                
                   3487 Points
                   Joined June 2011
                
               
			  
			  
             
            
             
	I am reproducing the answer given to Satheesh for view of everybody and invite comments on the matter.
	The Service Tax Rules do not quantify an penalty as such. Check if Finance Act 1994 contain any stipulation.
	In practice, minor delay may not be treated as non compliance. Also, the nature of amendment is important. Like change of address and addition of a new service, both requiring amendment are different and have different implications.
	Regards,