18. As discussed above, the real controversy test is the basic or cardinal test and it is the primary duty of the Court to decide whether such an amendment is necessary to decide the real dispute between the parties. If it is, the amendment will be allowed; if it is not, the amendment will be refused. On the contrary, the learned Judges of the High Court without deciding whether such an amendment is necessary have expressed certain opinion and entered into a discussion on merits of the amendment. In cases like this, the Court should also take notice of subsequent events in order to shorten the litigation, to preserve and safeguard rights of both parties and to subserve the ends of justice. It is settled by catena of decisions of this Court that the rule of amendment is essentially a rule of justice,