India recorded its highest-ever electricity demand for the third consecutive day on Wednesday.
Nearly 10 tonnes of waste is collected from Bowenpally market each day.
Dharnai near Bodhgaya in Bihar had no electricity and remained in darkness for more than 30 years.
To generate electricity, the researchers connect an aspirator pump to the water tap.
Dr Hema Sane wanted to follow the footprints of her parents and grandparents who lived without electricity.