| Megasthenes | Greece (Greek Ambassador) | 4th century BCE | Chandragupta Maurya (Mauryan Empire) | Wrote “Indica”, describing Mauryan administration, society | 
| Fa-Hien | China | 5th century CE | Gupta Empire (Chandragupta II) | Described society, economy, and Buddhism in India | 
| Hiuen Tsang (Xuanzang) | China | 7th century CE | Harshavardhana (Vardhana Dynasty) | Wrote “Si-Yu-Ki”, rich details of Indian religion, education, politics | 
| Al-Biruni | Central Asia (Khwarezm) | 11th century CE | Mahmud of Ghazni | Wrote “Tahqiq-i-Hind”, scientific and cultural insights | 
| Marco Polo | Italy (Venetian) | 13th century CE | During Yadava dynasty (Deccan region) | Described India's wealth, trade, and culture | 
| Ibn Battuta | Morocco | 14th century CE | Muhammad bin Tughlaq (Delhi Sultanate) | Wrote “Rihla”, detailed account of political & social life | 
| Niccolò de Conti | Italy | 15th century CE | Vijayanagara Empire | Gave details of South India’s trade and culture | 
| Duarte Barbosa | Portugal | 16th century CE | Vijayanagara Empire | Observed India's coastal trade and society | 
| Francisco Pelsaert | Netherlands | 17th century CE | Mughal Empire (Shah Jahan) | Described economic life and Mughal administration |