Your search for "ancient" revealed the following:

Ancient India (Bulletin of the Archaeological Survey of India)

Glimpses of India Engineering and Technology: Ancient and Medieval Period

History of Ancient India (From the Earliest Times to 1206 AD)

Fire, Death and Philosophy (A History of Ancient Indian Thinking)

Theology in the Architecture of Ancient Churches in Kerala

Medicines of Early India: With Appendix on a Rare Ancient Text

प्राचीन भारत में जनतंत्र- Democracy in Ancient India

Ancient Hindu Scriptures and Modern Science- Some Parallels

Ancient Indian Surgery- Based on Susruta Samhita (Volume- 6)

Ancient History of India- For UPSC Civil Servicse and Other Competitive Examinations

Susruta Samhita: Ancient Indian Surgery (3 Big Volumes)

The Ancient Mystical Order of Melchizedek by Malachi Z York

Bridging The Cosmos - Ancient Jain Scriptures Revealed Through Modern Astronomy

Tibet - Guge (The Cultural Relics of Ancient Western Tibet)

Ahara (Ancient Secret of Diet in Ayurveda & Yoga)

Ophthalmic and Otorhinolaryngological Considerations in Ancient Indian Surgery (Volume - VIII)

Sanctity of the Environment in Ancient Hindu Scriptures

A History of Ancient India (for UPSC and State Civil Services Examinations)

Aspects Of History of Agricultgure In Ancient India (Old & Rare)

Dictionary of Sanskrit Quotations on Agricultural Science in Ancient India