BBC Click’s Spencer Kelly looks at some of the start-ups at Indian Institutes of Technology Bombay’s Society for Innovation and Entrepreneurship (Sine).

He meets the team creating software that could help orthopaedic surgeons plan surgeries by turning two, 2D X-ray images of bones into 3D models.

He also learns about a prototype Braille display which uses new technology which could make the product 10 times cheaper than other displays.

Read and watch more stories from India

You can see Click: India's internet on rails over the weekend of 26 and 27 August 2017 on BBC World News and the BBC News Channel and after on BBCiPlayer (UK only)

This programme was first transmitted in March 2017.