1) Conventional sources of energy include firewood, cattle dung cake, coal, petroleum, natural gas etc. Firewood and cattle dung cake are most available in rural India. As a result, more than 70% energy requirement in rural households is met by these two resources
2) Coal is the most important form of conventional source of energy and it is the most abundantly available fossil fuel. It satisfy a major part of India’s energy needs. It is used for power generation, which is supplied to industry as well as domestic needs etc