The paper says the 29 are among 368 former employees who have been instructed by the council to repay a total of £1.5 million they received above the statutory minimum entitlement.
Letters sent by the council in July to the 368 - who received enhancements ranging from £400 to £18,000 - demanding repayment have elicited only two offers of reimbursement. The council confirmed yesterday that it has selected 29 test cases and summonses will be sent out later this month.
The proceedings will be heard in the County court, but some cases may go higher as the some of those refusing payment have union backing.
Out of the 368 who took redundancy 26 signed letters agreeing to reimburse additional payments totalling £141,000 should the legal challenge be upheld.