Quantity Variaton Only. Clause 52.3

If some item's amount is exceeded than BOQ amounts, but whole contract amount is in limit. e.g earth work BOQ amount is 1000 Million and work done /paid amount is 1400 million and contract amount is 3000 against paid is 1900 million. That "quantity variation only" case is dealt with under clause 52.3 at substantial completion stage and hence payments can be released as long as conditions of performance bond are not infringed as given in clause 60.3.