Sumant Sinha is the founder of ReNew, one of India's largest renewable energy companies. He explains why he left a successful corporate career to pursue renewable energy, the challenges of building a business in a fast-changing market, and whether India can become a clean-energy superpower. Presenter: Leanna Byrne Producer: Barbara George You can email the team: businessdaily@bbc.co.uk (Picture: Sumant Sinha. Credit: Mushtak Mohammad)
