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

Which of the following Indian leaders attended the First Round Table Conference in London?

Mahatma Gandhi, when visited London to participate in the Second Round Table Conference, stayed at:

The Second Round Table Conference in London was held in the backdrop of the :

Which one of the following is not true about the First Round Table Conference?

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