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

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

When was the First Round Table Conference of Indian leaders summoned in London by the British Government?

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

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

Who among the following leaders did NOT participate in the Second Round Table Conference?