'Arya Samaj was not only a religious and social movement but also a national movement.' Who wrote this in the famous book 'The History of the Indian National Congress'?

Mahatma Gandhi's last fast unto death in 1948 was primarily against which of the following?

What was the primary meaning of 'Swaraj' as popularized by Mahatma Gandhi during India's independence movement?

What was one major impact of India’s independence on its economy?