Carry forward of Opening balance of input credits

priya rathore (16 Points)

19 April 2017  
what will be the nature of these input credits carried forward in return(thus allowed to take these credits in my electronic credit ledger) to utilize it against my GST output liability?
eg if I had Service tax as ITC.. now under gst, how will I consider it?

Also, on issuing credit note in gst period for earlier period, how will the supplier reverse the credit? on what rate will credit note be prepared?