Hindustan

[hin-doo-stahn, -stan] /ˌhɪn dʊˈstɑn, -ˈstæn/
noun
1.
Persian name of India, especially the part N of the Deccan.
2.
the predominantly Hindu areas of India, as contrasted with the predominantly Muslim areas of Pakistan.
Compare India.
British Dictionary definitions for Hindustan

Hindustan

/ˌhɪndʊˈstɑːn/
noun
1.
the land of the Hindus, esp India north of the Deccan and excluding Bengal
2.
the general area around the Ganges where Hindi is the predominant language
3.
the areas of India where Hinduism predominates, as contrasted with those areas where Islam predominates
Word Origin and History for Hindustan

1610s, from Persian, literally "country of the Hindus;" see Hindu + -stan.