pls pls help - stock credit

geetha (student) (409 Points)

10 October 2017  
1. I purchase my goods ( mobile phones n chargers ) from chennai based transfer office.. the company s Delhi based . in the invoice vat is charged .
2. I have bought goods at the rate 5 % ,for now which gst rate is 12%.
3. is there any way to claim this 7 % diff by way of 60 40 ratio. (excise.part)
4. I have my June month carry fwd credit which I will.claim.in trans 1.