Slums are the habitat par excellence for a very substantial part of the world’s informal workforce. These settlements can be either urban or rural, but their defining feature at first sight is the poor quality of the housing and the paltry provisioning of basic utilities. There is no dearth of writing on slums, as Mike Davis’s panoramic survey in Planet of Slums made clear. Within this extensive literature, Mumbai in particular—where the slums that house half the population occupy less than a tenth of the land—has been the subject of a vast number of studies. Nevertheless, Katherine Boo’s chronicle of Annawadi stands out as a striking account of work and life at the margins of the urban economy. Crouched in the shadow of the city’s international airport, Annawadi was born in 1991 when a gang of construction workers brought in from Tamil Nadu to repair a runway decided to stay on when their job was finished, fabricating a settlement out of a swamp; its name comes from the Tamil word anna, a respectful term for ‘older brother’. Today’s inhabitants live on the leftovers of the opulence nearby—the waste from a cluster of gleaming luxury hotels, offices and airport buildings. If not salvaging trash, they resort to pilfering material from construction sites or warehouses scattered around the airport.

The stark contrast between Annawadi and the wealth all around is one reason why Boo—previously a reporter at the Washington Post, winning a Pulitzer in 2000 for her work on mental homes, and since 2001 a staff writer at the New Yorker—chose this terrain for her investigation. Its somewhat mawkish title derives from the repeated slogan of an advertisement for Italian floor-tiles, plastered on a concrete wall that hides the slum from view. A second reason for focusing on this enclave was its small scale, allowing for door-to-door surveys and what Boo calls the vagrant-sociology approach. Over the course of more than three years, from late 2007 to early 2011, she repeatedly returned to Annawadi. Monitoring the day-to-day life experiences of the slum-dwellers over such an extended stretch of time enabled her to change her initial perspective as outsider to something closer to that of an insider. If she has to a certain extent overlooked the wider context, Boo has managed to get close to the ups and downs of a small number of households on which she has zoomed in, and their tales are extensively documented.

The settlement that has come under her lens consists of 335 huts in which more than three thousand people are packed. Slums have a complex class configuration, and Annawadi is no exception. A few of the households aspire to the lifestyle of the petty bourgeoisie; these are the people who connect the other residents to the powermongers in the overcity—politicians, bureaucrats and ngos in particular—whose help is sought to get out of trouble, gain a free benefit or ward off some threat. The class identity of the large majority of slum-dwellers is sub-proletarian, while a residue of the good-for-nothing constitute the lumpen element—eaters of rats, frogs and scrub grass—whose presence is required as a reminder that life can still be worse than it has been so far. Overlaid onto these socio-economic patterns are confessional, caste, ethnic and regional identities: the two central families in the narrative are Muslim and Hindu, originally from Uttar Pradesh and the interior of Maharashtra respectively, but the slum also contains Nepalis, Tamils and many others.

Boo’s account opens with the arrival of the police at midnight to arrest Abdul Hakim Husain, a young garbage-sorter, and his father, accused of a faked crime for which they will nevertheless spend time in prison, during a prolonged wait for their case to come to trial. The events leading up to the fateful crime, and then the Husain family’s tortuous progress through the criminal justice system, form one of the book’s main narrative strands; the other focuses on the family of Asha, an enterprising Shiv Sena activist who aspires to become the slum’s overlord, ‘then ride the city’s inexorable corruption into the middle class’. The author’s techniques are ultimately those of an investigative journalist, yet throughout, Boo’s prose recounts developments in much the same way a novel would: terse, evocative descriptions and dialogue alternating with renditions in free indirect style of a given individual’s feelings and thoughts. Only at the end, in an author’s note, does the narrator herself appear, and the nature of her interaction with the slum-dwellers, as visiting outsider-investigator accompanied by research associates-cum-translators, gets spelled out.

Events in Annawadi are often portrayed through the eyes of youngsters. As Boo points out in her author’s endnote, children can indeed be more dependable witnesses, more open-minded in discussing the deeds and misdeeds of adults, and their undoings. Among this same generation, however, hopes for a better future are inevitably dampened by realism; trajectories leading out of abject poverty can be dreamt of, but all too often turn out to be dead-ends. There is a matter-of-fact acceptance that the heartfelt desire to ascend from undercitizenship to citizenship implies a claim to respectability that is more often denied than granted. No doubt, there are occasional windfalls, unexpected gains which bring temporary relief, but these are soon reversed. The sense of deprivation is all the more stark because a short distance away, glitter and glamour abound; as Abdul’s younger brother Mirchi puts it, ‘Everything around us is roses, and we are the shit in between.’

For the vast majority of Boo’s protagonists, then, setbacks are the order of the day. This bitter lesson has much to do with the lack of decent work and adequate income for almost all slum-dwellers. Among the more than three thousand inhabitants of Annawadi, only six had access to a permanent job. What kind of daily work schedule do the rest of the slum’s men, women and children have?

One by one, construction workers departed for an intersection where site supervisors chose day labourers. Young girls began threading marigolds into garlands that they would hawk in the evening’s rush-hour traffic. Older women sewed patches onto pink-and-blue cotton quilts for a company that paid by the piece. In a small, sweltering plastic-moulding factory, bare-chested men cranked gears that would turn coloured beads into ornaments to be hung from rearview mirrors—smiling ducks and pink cats with jewels around their necks that they couldn’t imagine anyone, anywhere buying. And Abdul crouched on the maidan, beginning to sort two weeks’ worth of purchased trash, a stained shirt hitching up his knobby spine.