Dr. Roberta Tomber works at the British Museum, London and is intimately associated with Pattanam. She is considered a ceramic expert and conservation scientist and is in charge of pottery from Pattanam. In October 2006 the Society for Arabian Studies under the British Museum, organized a seminar at Clore Education Centre London. The topic of the seminar was Natural Resources and Cultural Connections of the Red Sea.. Dr. Roberta Tomber chose a session on Pilgrimages, Religious Communities and the Red Sea. The paper presented by her was - Bishops and Traders: The Role of Christianity in the Indian Ocean during the Roman Period. Tomber highlights that Christians account for only 3% of overall population in India, but consoles that they constitute 20% in Kerala.. This is the abstract of the paper presented by ceramic expert of Pattanam .