SEC.138 AND 139-DISHONOUR OF CHEQUE ON ACCOUNT OF "STOP PAYMENT"-POST DATED CHEQUE IN QUESTION WAS BLANK ONE BEARING HIS SIGNATURE HAS BEEN LOST- ADMISION OF SIGNATURE-PRESUMPTION OF A LEGALLY ENFORCEABLE DEBT CAN BE DRAWN-PENAL PROVISIONS OF SEC.138 ATTRACTS-2010 SAR CRIMINAL 568