Validation on document Fake attestation by notary how to deal with it

"A" has submitted an agreement to the arbitral tribunal claiming to have been executed by "B" . The said agreement also bears stamp and signatures and attestation by a notary public . But there is no register entry number of the said notary public . " B " has denied the execution of the said agreement . The tribunal in collusion with “A” passed a arbitral award in favour of “A” . Challenged u/s -34 of A & C Act . RTI filed by "B" for knowing the genuineness of the notarisation by the said notary public . In reply the said notary public denies the attestation/ notarisation of the said agreement and provided the copy of his notary register which do not have any entry of the attestation of the said agreement by the said notary public . Queries : 1. Is still the agreement valid and legal document 2. What crimes have been committed by “A” by manufacturing and faking the attestation by notary ? “B”