She is Lakhan's only caretaker. She tells us his father passed away four years ago. His mother deserted them. His older sister ran away. For a long time, it was just Sakubai and her grandson living, eating, sleeping and surviving together on the pavement.
She may be in her 70s, but Sakubai still works to earn a meager living selling small toys and trinkets on Chowpatty, a popular beachfront in the heart of Mumbai.
She says she had no choice but to tie him to a pole. "He is deaf so he would not be able to hear traffic coming. If he ran onto the road, he'd get killed," she says. "See, it's a long rope," Sakubai says, as she shows me the frayed cloth she would use to tie Lakhan's leg. I notice many of them, tied to different poles.
Lakhan is not alone
There are many children like Lakhan in Mumbai, says Meena Mutha, a social worker. Mutha's been involved with his case since the end of May. Lakhan was taken into care after a photographer published his photo in the local newspaper. A police constable saw it and asked Mutha to intervene.
"When I saw him first, I did feel he needs help. He needs a home," Mutha recalls. Since his grandmother is already 70 years old, he could be without a caretaker in five or 10 years, she says. He needed somewhere secure to stay.
Unable to find a shelter that looks after children with special needs, Mutha took him to a government-run juvenile center in Mumbai. Lakhan is there now but Mutha isn't happy because it's not a home for children with special needs.