Tax audit - 43b disallowance

under sec 43b we can claim as deduction only on payment basis.. what is payment? whether the employee has gone without giving notice period money and the company has to give bonus to him. so out of the money which the employee should give pay to the company, the company deducted the bonus to paid to the employee. now whether the set off amount can be claimed as deduction or not? it will be treated as payment, right?