The article looks at how India's energy sources have changed over time and what might happen in the future. It found that despite using more energy, India relies a lot on coal and oil. The country's energy use per person is low compared to the rest of the world. India's energy demand will keep growing because of industries and cities, and coal will stay important, but gas and renewables might become more popular. Energy efficiency has improved, but not much has changed in the types of energy used. Since India doesn't produce enough energy on its own, it has to buy more, which can be expensive. If India's economy grows faster or goes greener, it could affect how much energy is used, how clean it is, and how much has to be bought from other countries.