Thermal electricity may be generated by using coal or petroleum products. Those dependent upon petroleum products as fuel have to increase the cost of electricity. Electricity distribution companies take electricity generalted by all kinds of plants. They average out the cost increase and increase the electricity tariffs to the consumers. In the same manner all industries are affected to a smaller or greater extent.
Crude oil is an energy.
In this century, it is the most wide spread energy. When the price of energy increases, inflation is bound to follow. Whenever there is inflation in the country, cost of production within India increases. So an exporter finds it difficult competing in the international market. Entire exporters' lobby clamours for devaluing the rupee.