Whether in an amalgamation, the companies shall be treated as separate entities for the period starting from effective date and ending on the date of order of the Court

Yes, for the purposes of this Act, the two or more companies amalgamated or merged in pursuance of an order of Court or of Tribunal or otherwise, shall be treated as distinct companies for the period up to the date of the said order and the registration certificates of the said companies shall be cancelled with effect from the date of the said order.

(ICAI FAQ PUBLICATIONS 06-09-2017 Liability in case of amalgamation /merger of Companies: FAQ NO. 6)

In case of an amalgamation, supplies effected for the period from effective date till the date of order of the Court between the companies inter-se is liable to tax

Yes. In terms of Section 87(1) of the CGST Act, 2017, the supplies between the
companies inter-se for the period starting from effective date and ending with the date of order of the Court is liable to tax and supply and receipt shall be included in the turnover of supply or receipt of the respective Companies.

(ICAI FAQ PUBLICATIONS 06-09-2017 Liability in case of amalgamation /merger of Companies : FAQ NO. 5)

In case of transfer of business, the transferor will be liable for the payment of tax, interest and penalty

Yes, the transferor and the transferee shall be jointly and severally, be liable to wholly or to the extent of such transfer, to pay the tax, interest or penalty which was due for the period prior to the date of transfer. Such tax liability, interest and penalty may be determined either prior to the date of transfer or thereafter.

(ICAI FAQ PUBLICATIONS 06-09-2017 Liability in case of transfer of business : FAQ NO. 1)