C forms received after filing return

As per Mahavat ; one can not file revised return . Now ; if one shows C Forms as pending in annexure for non-received C Forms , how C Forms received after filing return can be taken cognizance of .

Alternately ; which is better option :

1) To file late return ( till all C Forms are received ) and pay simple penalty of Rs. 5,000 

2) To file return with annexure showing C Forms as pending and then try to convince assessing officer on receipt of demand note for C Forms shown as pending .