Trading business, transmutation of scientific spiritual and metaphysical concepts were carried out between India-China and Europe (specially from Greece and Rome) through silk route or Red-sea. After the rise of Islam and formation of the Ottoman Empire both the routes were closed as the region across Asia-minor to Egypt was falling under the Islamic Ottoman Empire. Serious and hard conditions were imposed on traders and students of Europe going to India for higher education in the field of math, science, astronomy and metaphysics from the Nalanda University. Due to serious conditions imposed by the Ottoman ruler and insecure situation of the route the relation between Europe and India was almost cut off and Europe sank into a deep well of darkness, ignorance and superstitions. During the 15th century there was a big revolution across Europe to reach India by sea route . In 1492 Columbus set out with a fleet of three ships in search of India under supervision of the queen of Spain. Columbus by chance could not reach India but discovered a new big landmass America. But attempts by European sailors continued to reach India by sea route. Portugal sailor Vasco da gama got success in discovering India and he reached India on 14th May 1498 to Calicut port of present Kerala. After the success of Vasco da gama there was serious competition between sailors of Holland, England, France and other European countries.to discover India and Indian Ocean landmasses. In this context the Dutch sailor Tasman achieved a distinguished success in discovering another big landmass in the Indo pacific region and gave it a new name "New Holland" . This "New Holland" became" Australia" of England after the arrival of captain James Cook in 1770 and annexation by Arthur Philip in 1788. Australia became the last episode of the India discovery series started by European courageous sailors..