ABC Corporation (Pvt.) Ltd. incorporated under the Companies Act, 2013, purchased a five-room double-storey flat in XYZ locality of Chennai for providing company accommodation to its Company Secretary on the first floor

ABC Corporation (Pvt.) Ltd. incorporated under the Companies Act, 2013, purchased a five-room double-storey flat in XYZ locality of Chennai for providing company accommodation to its Company Secretary on the first floor and company guest house on the ground floor. For facilitating its registration, the Chairman-cum-CEO (CCEO), executed the following special Power of Attorney : "By this Power of Attorney, I XXX, the Chairman of the ABC Corporation Ltd. do hereby appoint and authorise CD, an MBA, LLB and ACS to be my agent and attorney for the purposes of executing registration of our company flat address: (XXXY, XYZ locality of Chennai) purchased by us for ₹80 lakh only from KLN Builders (Pvt.) Ltd., on this Day of September, 2014. To: All concerned authorities. Sd/-XXX CCEO" Upon presentment, the Sub-Registrar, Chennai refused its bearer, CD, to allow him to complete the registration procedure, holding the Power of Attorney to be void. Answer the following: Is the Sub-Registrar's refusal legally tenable ?