In September, hundreds of Dalit families were forced from their homes in two other districts of Bihar after a man from the community tried to contest a local election against higher caste candidates.
It may have been the country's financial capital, but in the photographs that followed, swaggering Mumbai didn't look much different from a monsoon-marooned Bihar village.
Since taking power Manjhi has announced measures to help other Dalits in Bihar, one of India's poorest states, and is reported to have urged the community to have more children to become a more powerful political force.
The states of Uttar Pradesh, Bihar and Sikkim, which share a border with Nepal, have reported building damage.
Manjhi claims a temple in northern Bihar was ritually cleaned and idols washed with holy water after his visit to the shrine.
Why do people migrate to cities to live like this? Parveen – whose parents came from a village in rural Bihar before she was born – says if the government provided people with means of sustenance in their villages, they would happily live there.
Ram, 15, was a goatherd in a village in the poor eastern Indian state of Bihar.
But if change is coming to places like rural Bihar, it is often accompanied by violence.
But of nearly 17,000 pending trials in Bihar involving charges of violence against Dalits only a 10th were dealt with last year.
In the 1960s and 1970s, the booming populations of states like Bihar were seen as a curse.
They are mostly unskilled men from rural areas in poor states like Bihar; thanks to Mr Singh they have jobs in cities all over India.There is lots to celebrate about this.
