Amartya Dey

Hi all! I am new to this, so kindly excuse my ignorance. I am from India, and am currently pursuing my MBA from an AACSB accredited B-school here, down south. Prior to this, I did my B.Tech in civil engineering post which I worked for a construction company for 8 months. During my graduation, I had started a coaching institution to train students for engineering and medical entrance examinations, and ran it successfully for 17 months. My acads are decent, and I am interested in pursuing a PhD in Public Policy, but I don't know how I should approach the same. I am looking for an international exposure. I would be grateful if someone could answer the following queries: 1) Kindly let me know what kind of profile is preferred by the best schools in the US. 2) I would not be able to afford the high fees, and am looking for scholarships/stipends. Which are the schools where the stipends are decent? 3) Is MPP necessary for getting into the PhD programme? 4) What else can or rather should I do to improve my profile? 5) If I applied for a fellowship under the a foundation say, Teach For India, would that counted as relevant experience? 6) I went through the MPP programme details of Woodrow Wilson Princeton, and got pretty excited about their MPP programme. How competitive is the programme? What should I do to get in there? Looking forward to the answers! Kindly bear! Thanks!