1. The entire thing will be mentioned as sale consideration amount however the GST may not be calculated for the purpose of stamp duty.
2. read the above answer.
3. The full availability of input credit as compared to current regime (where input credit is not available on excise duty paid on certain raw material inputs) is expected to be beneficial for reducing project costs under the GST system,i.e., the current tax regime, works contract attracts a service tax rate of 6 percent which is a reduced tax rate under a special scheme known as the abatement scheme and a value added tax or VAT that currently ranges from 1 to 5 percent depending from state to state. While paying these taxes today, developers do not get a deduction of the input tax but under GST they will. This means that on the amount of excise duty and VAT they pay on cement or steel, no set off is available to them but under the new GST regime, developers will be able to get benefits on taxes.
Thus it will be adjusted in the papers on the basis of their adjustment towards other taxes
4. The builder if collected GST also from you, the receipt or evidence of this will be in your possession which will support your defence.
5.You dont worry about it, it is the head ache of the builder.
6. The builder should provide the details
7. Yes
8. What is your concern about this, the builder have to follow the laid down procedures in this regard.
9. Consult your lawyer before ,making the final sale deed executed and registered, in case you still have doubts on it, at that stage.