The Government decided to extend the scope of the scheme as was announced by letter No. 12 (22/67EAC) dated 4th February, 1970, hereinafter referred to as 'the 1970 scheme ', stating inter alia, in paragraph 3 that the registered exporter of export products under a contract involving deliveries extending over a period of not less than 12 months, registered by the banks in terms of para graph 3 of the public notice dated 8th December, 1969 will be eligible for claiming cash assistance at the same per centage as was prevailing on the date of the Firm contract so registered provided that the bank attested invoice which is normally produced for the purpose 'of claiming cash assistance, bears a further attestation from the negotiating bank to the effect that exports effected in this invoice is against a contract registered with them giving the Registra tion number and date.