Prime Minister Narendra Modi's Bihar ally Upendra Kushwaha quit the government and exited the BJP-led National Democratic Alliance (NDA) today in a move anticipated for months because of his growing resentment with the ruling party and its seat-share deal another ally, Nitish Kumar, for the 2019 national polls. "I stand dejected and betrayed by your leadership," Mr Kushwaha said in an acrid letter to PM Modi.