AKIM AKROSO STOOL AND OTHERS v. AKIM MANSO STOOL AND OTHERS Fraud—Judgment—Application to set aside—Judgment to be set aside on proof of fraud—Fraud as defence on a plea of estoppel—Allegation of fraud to be stated with certainty and full particulars—Fraud to be established by evidence called by party alleging fraud—High Court (Civil Procedure) Rules, 1954 (L.N. 140A), Order 19, r. 6.