i would say nitish kumar.
it was he who brought safety of railways ( anti collision device), internet booking , very morale character (resigned after gaisal train accident ),
with 14 accidents this yr alone, now no one even talk of resigning (with due respect to mamata banerjee, dinesh trivedi).
how many of u agree with me??
see...
more... the change he had brought to bihar!!!
i see him as the future prime minister