'Pravasi Bharatiya Diwas' (PBD) or NRI Day is celebrated in India every year on which date?

The year 1919 in India history is related to :

The 'Anarchical and revolutionary act' was passed in which year?

In which of the following year M.K. Gandhi wrote “Hind Swaraj”?

Which of the following session of the Indian National Congress, Gandhi said, 'Gandhi may die, but Gandhism will remain forever"?

At which place of Bihar, Gandhiji started Satyagraha movement for the first time in India :