Who was the secretary of Mahatma Gandhi during Noakhali?

Which one of the following Satyagrahas was not lead by Mahatma Gandhi?

The prefix ‘Mahatma’ was added with the name of Gandhi:

Who was the first person to call Mahatma Gandhi, ‘Father of Nation’?

At the time of India’s Independence, Mahatma Gandhi was:

Name of the magazine published by Mahatma Gandhi during his stay in South Africa, was-: