The women are poor and come from India's appalling slums. They are paid about $7,000 for providing babies, a fortune in their terms, and receive good medical care and attention during their nine-month term. But with an increasing number of Westerners travelling to India for the service, this surrogacy boom has sparked a fierce moral, ethical and legal debate. 'It's just horrific to consider this in moral terms - as though this were some sort of legitimate transaction,' says ethicist Nick Tonti-Filippini, 'at the end of the day it's wealthy people exploiting poor people.' Dr Nayna Patel, co-founder of the Akanksha clinic, disagrees. 'How can you say it is exploitation of the female when the female is willing to do it?' A fascinating insight into the 'Womb for Rent' debate.