At which Congress Session was the working committee authorized to launch a programme of Civil Disobedience?

The Civil Disobedience Movement started with :

After the failure of the Civil Disobedience movement,Gandhiji gave importance to :

'Operation Rubicon' was the code word proposed to be adopted by British Government in India with reference to which of the following?

The Indian National Congress did not take part in which of the following Round Table Conferences?

At which one of the following Round Table Conferences held in London was Mahatma Gandhi present?