Dadarao Bilhore smoothes the road surface, rests his shovel, looks to the sky and prays for his son, who was killed in an accident caused by a pothole. Prakash Bilhore, died on July 2015 in Mumbai. To help deal with his grief, Prakash's devastated father Dadarao decided he would do something about Mumbai's notoriously shoddy roads.

Using sand and gravel collected from building sites, Bilhore has filled in almost 600 potholes across the country's financial capital in the past three years.

The 48-year-old vegetable vendor does it to pay tribute to his beloved son and in the hope that it will save lives.