In a recent new rule issued by the Centre, your electricity bill during the summers is set to be hiked as there are more charges for using AC and cooler at night time.
“Under the ToD Tariff system, the Tariff during solar hours (duration of eight hours in a day as specified by the State Electricity Regulatory Commission) of the day shall be 10 per cent-20 per cent less than the normal tariff, while the tariff during peak hours will be 10 to 20 per cent higher.”
This means that during the mornings the charges to use AC and coolers will be less, but during the peak hours, which are at night, you will have to pay more to use air conditioners, which will likely hike your electricity bill.