20. We thus have two categories of cases. The first, similar to the one dealt with in TRF Ltd. [TRF Ltd. v. Energo Engg. Projects Ltd., (2017) 8 SCC 377 : (2017) 4 SCC (Civ) 72] where the Managing Director himself is named as an arbitrator with an additional power to appoint any other person as an arbitrator. In the second category, the Managing Director is not to act as an arbitrator himself but is empowered or authorised to appoint any other person of his choice or discretion as an arbitrator. If, in the first category of cases, the Managing Director was found incompetent, it was because of the interest that he would be said to be having in the outcome or result of the dispute. The element of invalidity would thus be directly relatable to and arise from the interest that he would be having in such outcome or decision. If that be the test, similar invalidity would always arise and spring even in the second category of cases. If the interest that he has in the outcome of the dispute, is taken to be the basis for the possibility of bias, it will always be present irrespective of whether the matter stands under the first or second category of cases. We are conscious that if such deduction is drawn from the decision of this Court in TRF Ltd. [TRF Ltd. v. Energo Engg. Projects Ltd., (2017) 8 SCC 377 : (2017) 4 SCC (Civ) 72] , all cases having clauses similar to that with which we are presently concerned, a party to the agreement would be disentitled to make any appointment of an arbitrator on its own and it would always be available to argue that a party or an official or an authority having interest in the dispute would be disentitled to make appointment of an arbitrator.