Subregions- Andhra Pradesh-Chhattisgarh border region, India
 - Andhra Pradesh, India
 - Andhra Pradesh-Tamil Nadu border region, India
 - Arunachal Pradesh, India
 - Assam, India
 - Assam-Nagaland-Manipur region, India
 - Assam - Nagaland region, India
 - Bangladesh
 - Bay of Bengal
 - Bhutan
 - Bihar, India
 - Bihar-Jharkhand border region, India
 - Chhattisgarh, India
 - Chhattisgarh-Jharkhand border region, India
 - Chhattisgarh-Jharkhand-Orissa border region, India
 - Chhattisgarh-Orissa border region, India
 - China-Laos-Vietnam border region
 - China-Vietnam border region
 - Chongqing, China
 - Chongqing-Guizhou border region, China
 - Chongqing-Hubei border region, China
 - eastern Kashmir
 - eastern Sichuan, China
 - eastern Xizang
 - eastern Xizang-India border region
 - Goa-Karnataka border region, India
 - Gujarat, India
 - Gujarat-Madhya Pradesh border region, India
 - Gujarat-Maharashtra border region, India
 - Haryana - Delhi region, India
 - Haryana-Delhi-Uttar Pradesh region, India
 - Haryana, India
 - Haryana - Punjab region, India
 - Haryana - Uttaranchal region, India
 - Himachal Pradesh, India
 - India-Bangladesh border region
 - Jharkhand, India
 - Jharkhand-Orissa-West Bengal region, India
 - Jharkhand region, India
 - Jharkhand-West Bengal border region, India
 - Karnataka-Andhra Pradesh border region, India
 - Karnataka, India
 - Karnataka-Tamil Nadu border region, India
 - Kashmir-India border region
 - Kashmir-Xizang border region
 - Kerala, India
 - Kerala-Karnataka border region, India
 - Kerala-Karnataka-Tamil Nadu border region, India
 - Kerala-Tamil Nadu border region, India
 - Madhya Pradesh-Chhattisgarh border region, India
 - Madhya Pradesh, India
 - Madhya Pradesh-Maharashtra border region, India
 - Madhya Pradesh region, India
 - Maharashtra-Andhra Pradesh border region, India
 - Maharashtra-Chhattisgarh border region, India
 - Maharashtra, India
 - Maharashtra-Karnataka border region, India
 - Meghalaya - Assam region, India
 - Meghalaya, India region
 - near the coast of Andhra Pradesh, India
 - near the coast of Bangladesh
 - near the coast of Goa, India
 - near the coast of Gujarat, India
 - near the coast of Karnataka, India
 - near the coast of Kerala, India
 - near the coast of Maharashtra, India
 - near the coast of Orissa, India
 - near the coast of Tamil Nadu, India
 - near the coast of West Bengal, India
 - Nepal
 - Nepal-India border region
 - Orissa, India
 - Orissa region, India
 - Palk Strait
 - Punjab-Chandigarh-Haryana region, India
 - Punjab-Himachal Pradesh border region, India
 - Punjab, India
 - Qinghai-Xizang-Sichuan border region
 - Rajasthan-Gujarat border region, India
 - Rajasthan-Haryana border region, India
 - Rajasthan, India
 - Rajasthan-Madhya Pradesh border region, India
 - Rajasthan-Uttar Pradesh border region, India
 - Shaanxi-Sichuan border region, China
 - Sichuan-Chongqing border region, China
 - Sichuan-Gansu border region, China
 - Sichuan-Guizhou border region, China
 - Sichuan-Yunnan border region, China
 - Sichuan-Yunnan-Guizhou region, China
 - Sikkim, India
 - Tamil Nadu, India
 - Tripura, India region
 - Uttaranchal, India
 - Uttaranchal-Uttar Pradesh border region, India
 - Uttar Pradesh-Bihar border region, India
 - Uttar Pradesh-Bihar-Jharkhand border region, India
 - Uttar Pradesh, India
 - Uttar Pradesh-Madhya Pradesh border region, India
 - West Bengal, India
 - western Sichuan, China
 - western Xizang
 - western Xizang-India border region
 - Xinjiang-Xizang border region
 - Xizang-India-Myanmar border region
 - Xizang-Nepal border region
 - Xizang-Qinghai border region
 - Xizang-Sichuan border region
 - Yunnan, China

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