Bigamy is illegal in Britain and carries a jail sentence of up to seven years, but Mr Chaiwala insists that his service is promoting fidelity and stopping women from being lonely.
His sites, he claims, are about old fashioned values.
Mr Chaiwala explains: 'Users police each other and every picture is vetted for decency. We do not allow cleavage.'
However, not all are convinced by his progressive romantic vision.
Leading Muslim MP Khalid Mahmood has branded the venture 'stupid' and warned that women entering a polygamous relationship are waving away financial rights usually attached to a marriage.
He said: 'It puts a person in huge peril because they are not allowed to claim, as a partner, on his estate. It is not acceptable and puts individuals very much at risk, it puts them at a huge disadvantage.