There are myriad nunaces a woman goes thorough during pregnancy and childbirth ...this project needs to be monitored and executed extremely carefully and with complete sensitiviy. There is so much that could go wrong.. a woman's womb is not a commodity that should be so easily available for selling, not to say that it is not a good option but there should be proper controls in place and unfortunately in India where poverty is prevalent, this can backfire into a shady business....
Having a baby for someone else may sound incredibly lofty and blissful at first, but could get complicated and hairy during and after the pregnancy.. there are many issues one has to think about.