Electricity generation rose to 86.6 billion units from 77.87 billion in April last year, according to data from the Central Electricity Authority (CEA).
Thermal power plants generated 74.02 billion units during the month. Hydel, nuclear and power imports from Bhutan contributed 9.67 billion units, 2.81 billion units and 78 million units, respectively.
The electricity generated in April was higher than the target of 81.74 billion units set by the government for the month, according to the data.
A thermal power project with a capacity of 135 MW was commissioned in Chhattisgarh in April.
The CEA estimates generation of 1,023 billion units in 2014-15, compared with 967 billion units in 2013-14.
The peak power requirement in the country in April was 1,40,998 MW, while availability was 1,33,442 MW.