India is fast adapting solar and it is expected to wean off coal in the next few decades. Solar, not coal, is India's future by 2030: Report - http://www.business-standard.com/article/economy-policy/sola... There is a bigger and more pressing problem with internal combustion engines. Due to the population and vehicle density, smog is a real issue in cities and the air is becoming toxic. Electric vehicles help address that issue.