Around the world millions of children are not getting a proper education because their families are too poor to afford to send them to school. In India, one schoolboy is trying change that. In the first report in the BBC's Hunger to Learn series, Damian Grammaticas meets Babar Ali, whose remarkable education project is transforming the lives of hundreds of poor children.
At 16 years old, Babar Ali must be the youngest headmaster in the world. He's a teenager who is in charge of teaching hundreds of students in his family's backyard, where he runs classes for poor children from his village.
The story of this young man from Murshidabad in West Bengal is a remarkable tale of the desire to learn amid the direst poverty.
Babar Ali's day starts early. He wakes, pitches-in with the household chores, then jumps on an auto-rickshaw which takes him part of the 10km (six mile) ride to the Raj Govinda school. The last couple of kilometres he has to walk.
The school is the best in this part of West Bengal. There are hundreds of students, boys and girls. The classrooms are neat, if bare. But there are desks, chairs, a blackboard, and the teachers are all dedicated and well-qualified.
As the class 12 roll-call is taken, Babar Ali is seated in the middle in the front row. He's a tall, slim, gangly teenager, studious and smart in his blue and white uniform. He takes his notes carefully. He is the model student.
Babar Ali is the first member of his family ever to get a proper education.
"It's not easy for me to come to school because I live so far away," he says, "but the teachers are good and I love learning. And my parents believe I must get the best education possible that's why I am here."
Raj Govinda school is government-run so it is free, all Babar Ali has to pay for is his uniform, his books and the rickshaw ride to get there. But still that means his family has to find around 1,800 rupees a year ($40, £25) to send him to school. In this part of West Bengal that is a lot of money. Many poor families simply can't afford to send their children to school, even when it is free.
Chumki Hajra is one who has never been to school. She is 14 years old and lives in a tiny shack with her grandmother. Their home is simple A-frame supporting a thatched roof next to the rice paddies and coconut palms at the edge of the village. Inside the hut there is just room for a bed and a few possessions.
Chumki Hajra, a pupil at Babar Ali's school, describes her day
Every morning, instead of going to school, she scrubs the dishes and cleans the homes of her neighbours. She's done this ever since she was five. For her work she earns just 200 rupees a month ($5, £3). It's not much, but it's money her family desperately needs. And it means that she has to work as a servant everyday in the village.
"My father is handicapped and can't work," Chumki tells me as she scrubs a pot. "We need the money. If I don't work, we can't survive as a family. So I have no choice but to do this job."
But Chumki is now getting an education, thanks to Babar Ali. The 16-year-old has made it his mission to help Chumki and hundreds of other poor children in his village. The minute his lessons are over at Raj Govinda school, Babar Ali doesn't stop to play, he heads off to share what he's learnt with other children from his village.
At four o'clock every afternoon after Babar Ali gets back to his family home a bell summons children to his house. They flood through the gate into the yard behind his house, where Babar Ali now acts as headmaster of his own, unofficial school.
Lined up in his back yard the children sing the national anthem. Standing on a podium, Babar Ali lectures them about discipline, then study begins.
Babar Ali gives lessons just the way he has heard them from his teachers. Some children are seated in the mud, others on rickety benches under a rough, homemade shelter. The family chickens scratch around nearby. In every corner of the yard are groups of children studying hard.
Babar Ali was just nine when he began teaching a few friends as a game. They were all eager to know what he learnt in school every morning and he liked playing at being their teacher.
Without this school many kids wouldn't get an education, they'd never even be literate.
Now his afternoon school has 800 students, all from poor families, all taught for free. Most of the girls come here after working, like Chumki, as domestic helps in the village, and the boys after they have finished their day's work labouring in the fields.
"In the beginning I was just play-acting, teaching my friends," Babar Ali says, "but then I realised these children will never learn to read and write if they don't have proper lessons. It's my duty to educate them, to help our country build a better future."
Including Babar Ali there are now 10 teachers at the school, all, like him are students at school or college, who give their time voluntarily. Babar Ali doesn't charge for anything, even books and food are given free, funded by donations. It means even the poorest can come here.
"Our area is economically deprived," he says. "Without this school many kids wouldn't get an education, they'd never even be literate."
Seated on a rough bench squeezed in with about a dozen other girls, Chumki Hajra is busy scribbling notes.
Her dedication to learning is incredible to see. Every day she works in homes in the village from six in the morning until half past two in the afternoon, then she heads to Babar Ali's school. At seven every evening she heads back to do more cleaning work.
Chumki's dream is to one day become a nurse, and Babar Ali's classes might just make it possible.
The school has been recognized by the local authorities, it has helped increase literacy rates in the area, and Babar Ali has won awards for his work.
The youngest children are just four or five, and they are all squeezed in to a tiny veranda. There are just a couple of bare electric bulbs to give light as lessons stretch into the evening, and only if there is electricity.
And then the monsoon rain begins. Huge big drops fall as the children scurry for cover, slipping in the mud. They crowd under a piece of plastic sheeting. Babar Ali shouts an order. Lessons are cancelled for the afternoon otherwise everyone will be soaked. Having no classrooms means lessons are at the mercy of the elements.
The children climb onto the porch of a nearby shop as the rain pours down. Then they hurry home through the downpour. Tomorrow they'll be back though. Eight hundred poor children, unable to afford an education, but hungry for anything they can learn at Babar Ali's school.