@ SAZ
i dnt know exactly the source of my notes in which i studied that UPI stands for united press international. Anyways
www.upi.com and wikipedia show UPI to stand for united press international.As u hav also studied that UPI stands for united press of India in another book and as i believe that the websites which i hav mentioned are no authentic source regarding journalism so i think at this juncture someone who has access to any authentic source of journalism whose reference can be in cited should come up to our rescue and solve the riddle.