He assured that stringent measures have been adopted to prevent any erroneous calculation of the new power charges, which came into effect yesterday.
Electricity consumers can complain to the area engineer or the revenue accountant of the respective provinces in case of any purported discrepancy in their monthly bills, he said.
Ganegala said the CEB had given time until May 20 because meter readers need to familiarize themselves with the new mode of calculation.
"We calculate the monthly electricity bill of a user daily and the bill is computed on a monthly basis varying from 29 days to 31 days as the case may be. Therefore, the accounting will be done under the old rate until April 19 and under the new rates from the April 20 onwards," he was further quoted saying.