Your search for "ancient" revealed the following:

नित्यसमर्पणम्- Nitya-Samarpanam (With English Translation)

Upendra Thakur- Makers of Indian Literature

Prana Healing- An Old and Rare Book

Archaeological Remains in Western India (An Old & Rare Book)

Vendanta: What Can it Teach?

Scythian Elements in Early Indian Art

Darsapurnamasa - A Comparative Ritualistic Study (An Old Book)

Aryans (Who Are They?)

Goetic Liturgy by Jake Stratton-Kent

Interactive Workshop On Ayurveda (Asthivaha Srotas, Disorders of Bones and Joints Including Fractures and their Management)

Pancha Mahadevas in the Indian Art

The Significance of Hindu Worship

Katha Upanishad (Sanskri Text, Transliteration, Word-to-Word Meaning, English Translation and Detailed Notes) - A Most Useful Edition for Self Study

Aspects of Indian History and Historiography (Prof. Kalyan Kumar Dasgupta Felicitation Volume)

Maritime Archaeology- Historical Descriptions of The Seafarings of the Kalingas

List of Architectural and Archaeologial Remains in Coorg (An Old Book)

A Critical Inventory of Ramayana Studies In The World in Set of 2 Volumes (Vol:1 Indian Languages and English Vol:II Foreign Languages)

Temple Sculptures of Assam

हृदय यन्त्र तन्त्र - Approach and Update to Cardiology in Ayurveda

Ambedkar on Indian History