She, however, noted that review for other public officers at the lower level will continue taking into account the existing contractual agreements.
The president said all arms of government must live within their means.
The proposal comes as protests take place countywide for President William Ruto to resign for reasons including funds wastage by his government, wanton corruption, and excessive taxation.
"The intention is to divert public attention from the real issues by purporting to adjust the salaries of senior state officers, members of parliament, members of county assemblies, and governors upwards at a time when the country's economy is not doing well," Azimio co-principal Kalonzo Musyoka claimed.
Only salaries for President William Ruto and his Deputy Rigathi Gachagua, who earn Sh1,443,750 and Sh1,227,188, respectively, will not be adjusted.
The timing of these salary increases has led to significant backlash from Kenyans, who are questioning the proposal, especially with the government yet to pay junior secondary school teachers and medical interns.
The salary structure includes Sh459,113 in basic pay, Sh165,000 in house allowance, and Sh155,887 in salary market adjustment.
The SRC says employers should not entertain any proposals for higher pay if they cannot afford it.
The doctors took to the streets on March 14, 2024, and demanded, among other things, the deployment of medical interns.
Mengich emphasised the importance of retaining the current retirement age, citing concerns over increased pensionable liabilities and the premature disposal of experienced employees.