The sickening irony is that that they can only escape it by becoming part of it; exploiting your neighbour beats solidarity any time, so embezzling funds meant for a poverty-relief programme is common sense.
Syal, familiar as the risque grandma in The Kumars at No 42, plays the snobbish Zehrunisa, one side of the feud that provides the story's backbone. Her neighbour Fatima (Jayasundera) embarks on a shocking course of revenge that sparks an encounter with the law - not a good idea for a poor person at the best of times in India.
This plotline is one of several that keep the show moving on a revolving stage with impressively flexible sets and the ensemble cast hums in perfect harmony so that even star turns do not obtrude.
As a piece of theatre, it falls short of masterpiece status, but it's a remarkable and kinetic adaptation of a fine book.
Cast: Hiran Abeysekera, Meera Syal, Shane Zaza, Thusitha Jayasundera, Anjana Vasan,Stephanie Street
Director: Rufus Norris
Running time: 160 mins
Rating: TBC
Verdict: Eye-opening and unexpectedly funny