fact that if a defendant does not raise the plea about compliance of Section 12A, it may result in a given case of waiver cannot result in Section 12A not being mandatory. If it were so, then in a case where there is no notice under Section 80, a plaint can never be rejected. It is legally untenable and defies logic. Another argument raised by Shri Saket Sikri, learned counsel is that by the impugned order, the High Court has affirmed the trial Court order that the suit be kept in suspended animation and referred the parties for mediation. According to him, it is substantial compliance of Section 12A of the Act. It is eminently just. He also points out the conduct of the appellant in not even cooperating the in the mediation process. We are unable to accept this argument. We will refer to Section 80 of the CPC to assist us in justifying our conclusion. Under Section 80(1) of the CPC, a suit not covered by Section 80(2), which is filed in defiance of the former provision, that is without serving any notice, is not maintainable. The suit would be barred and liable to be rejected under Order VII Rule 11. The only exception is what is provided in Section 80 (2). It contemplates a suit to obtain an urgent or interim relief. Such a suit may be instituted with the leave of the court without serving any notice as required under Section 80(1). In a case where a plaintiff does not seek urgent interim relief under Section 80(2), the suit would fall within the four walls of Section 80(1). Section 80(1) is mandatory. In regard to such suit, there is no question of substantial compliance. The suit must