I am not able to understand your exact requirement. Is it that you want the list of callcenters in India? which are used by the american companies to outsource the orders??
can you be specific, so that i can see whether i can help you.
I would like to know which British companies outsource call centre work to India. I’m not really interested in obtaining the names of the actual companies in India, only the names of the British companies. I hope this helps.