Hindustan and Bharat, Sanatan Dharma and Hindu Dharma: How Savarkar defined them
Savarkar says that Hindi and Hindustan best describe the people who lived between Sindhu and Sindhu (river Indus and the sea), and Bharatavarsha is “a latter designation”. He also explains the difference between Hindu Dharma and Sanatan Dharma.
Source: indianexpress.com