'A master psychologist - cycling's answer to Brian Clough.' MARK CAVENDISH The inside story of Mark Cavendish's Rainbow Jersey Winning World Title of 2011 Twenty five years ago, British road cycling was in the doldrums: today it is at the top of the world thanks to Bradley Wiggins, Chris Froome, Geraint Thomas and the sprinter who has bridged all their careers - the Manx Missile, Mark Cavendish. British cycling has become that rare beast, a story of sporting success built from the bottom up. Project Rainbow is the story of this sport's meteoric rise, told by one of its key figures, culminating in Cavendish's world road race title in 2011. As GB Elite Road Coach and former Team Sky Performance Manager, Rod Ellingworth was one of the most important men behind this incredible rise. Here, one of the chief architects of this amazing journey, tells the inside story of both teams' advance to the top. With an introduction by Mark Cavendish.

The story begins in a public square in New Delhi. On a cold December evening a young European woman of noble descent appears before an Indian street artist known locally as PK and asks him to paint her portrait – it is an encounter that will change their lives irrevocably.

PK was not born in the city. He grew up in a small remote village on the edge of the jungle in East India, and his childhood as an untouchable was one of crushing hardship. He was forced to sit outside the classroom during school, would watch classmates wash themselves if they came into contact with him, and had stones thrown at him when he approached the village temple. According to the priests, PK dirtied everything that was pure and holy. But had PK not been an untouchable, his life would have turned out very differently.

This is the remarkable true story of how love and courage led PK to overcome extreme poverty, caste prejudice and adversity – as well as a 7,000-mile, adventure-filled journey across continents and cultures – to be with the woman he loved.