Gst-input tax credit

No ITC will be available to you as you have not paid any tax on purchase of them because they were exempt.

Okay. Thanks. Do I have to prepare a statement of closing stock as on 30/06/2017?

No such requirement

Okay. Now after studying few things about GST on my products I came to know that I have few products exempt and on few things I have 5% then for a particular customer I have to issue two bills namely one for taxable products and another one for exempted products? Or one bill is sufficient ? In both cases whether the person is registered and unregistered?

Seprate bills will be issued. but 2nd part not clear, who the  person you are talking about 

Customer A buys from me taxable and exempt goods both. First case: he is registered and second case he in unregistered. So for both the cases I have to isse two bills? One for exempted goods and second bill for taxable goods?