nehru betrayed Tibet on account of his lack of understanding and hatred of indic traditions (buddhism/hinduism) and his foolish infatuation with communism. nehru's foot prints can be seen in each of India's problems: nehru's sins go further.
Summary of his blunders follow:
Weakening of India's Defence, Loss of United Northern Kashmir to Pakistan, Permit License Raj condemning millions to perpetual poverty, Linguistic vivisection of India to further his self serving agenda (spite CR/Chavan/Morarji) Anti Hindu (pro islamist/christianist) thrust to politics, Marxist sponsored distortion of Indian history Dynastic politics (skewing democracy)