query: When Pema Khandu quit INC and joined the People's Party of Arunachal and later to Bharatiya Janata Party?
answer: On 16 September 2016, Pema Khandu quit INC and joined the People's Party of Arunachal (PPA), and on 31 December 2016, he left PPA and joined Bharatiya Janata Party.                                                                                                                                                                              