"While on assignment to the U.S. Department of State as senior adviser to the Undersecretary of State for Political Affairs, he was intimately involved in negotiating the civil nuclear agreement with India.
Previously he was commissioned into the Foreign Service and served as senior adviser to the ambassador at the U.S. Embassy in New Delhi."
B.A., M.A.; University of Bombay; M.A., Ph.D., The University of Chicago
As the above should indicate, its not just his 'birth place' he was born, raised and educated (BA and MA) in India, and that means he likely carries his loyalties towards India with him - his experience indicates the same.
Sorry, but I can't take the word of an Indian on a matter of India vs Pakistan - the possibility of bias and nationalism overriding objectivity is too high, and highly likely.
And in this case it is obvious that his loyalties towards India