Analysis of information sources in references of the Wikipedia article "印度地理" in Chinese language version.
This greater India is well defined in terms of topography; it is the Indian sub-continent, hemmed in by the Himalayas on the north, the Hindu Khush in the west and the Arakanese in the east.
The Bay of Bengal receives 90% of India’s total surface water, while the Arabian Sea receives the remaining 10%.