==Etymology== Hindustan is derived from the Modern Persian word Hindū. In Old Persian, the region beyond the Indus River was referred to as Hinduš (the Iranic equivalent of Sanskrit Sindhu), hence Modern Persian Hind, Hindū. This combined with the Iranic suffix -stān results in Hindustan, `land of the Hindus`. By about 1st century BC, the te..... Found on http://en.wikipedia.org/wiki/Hindustan
The whole of India, but more specifically the plain of the Ganges and Yamuna rivers, or that part of India north of the Deccan Found on https://www.encyclo.co.uk/local/21221
Persian name of India, esp. the part N of the Deccan. · the predominantly Hindu areas of India, as contrasted with the predominantly Muslim areas of Pakistan. Cf. India. Found on https://www.infoplease.com/dictionary/hindustan