As per Rule 16(2), if any manufacturer receives back the goods for further processing then he can avail credit of the goods on the basis of self Invoice. and there after process the goods.
Now, there are two situations:
1. The further processing of goods amounts to Manufacture-
you are required to pay the excise duty on Goods calculated as per the provisions as applicable on the date of re-removal of goods.
2. The further processing of goods doesn't amounts to manufacture-
You are required to pay an Amount equal to the Credit taken above
Thanks & Regards
Rajesh Ahuja