If i am a vat dealer and before gst i have a purchase bill of excise and same is in my stock on 30th june. Then may i take the credit of excise ?
Yes you can, provided that invoice is not older than 12 months from 1st July (in this case the appointed day).
Yes, you can take credit for stock finished goods by having proper records and filing returns of last month/quarter.
Also you have to give all details of bills online. see transition rules approved by gst council.
Please work on this process very carefully.
Also consider the answer given by zaffer.