Input tax credit under gst act 2017

Dear Experts,

Good Morning..!

I have a doubt regarding Input Tax Credit under GST Act, that one of the VAT dealer is registered under Existing VAT and doing RMC Manufacturing business.

By nature he needs to Purchase some Excisable Goods for his Production, but he himself treated excise duty as expense.

And My doubt is Can such dealer Claim Input Tax Credit of Excisable Goods Purcahsed during Current FY under Trasitional Rules of GST or Not by using GST Tran form

Please provide your suggetions, please correct me if i am wrong..!

Thanks,

Yuva