India, Feb. 20 -- What began as a simple hobby for 47-year-old Roshan Kumar Rawat has grown into a sustained education initiative for construction workers' children in the city.

After moving to Gurugram in 2014, Rawat started teaching two to three children of nearby construction workers in Sector 51 a year later. "Initially, we held classes in our colony's parking area. As the number increased to 15, we shifted to a nearby temple. When it grew to 28, we decided to move to a park," he said. "I had no idea that I would become so invested in what started as just a hobby."

In 2016, Rawat expanded the effort to a second location in Sector 46 after seeing the response in Sector 51. He initially approached children and their families personall...