Indian PM visits Portugal.
The two countries also announced a four-million-euros joint fund to bolster research in science and technology.
Both counties have signed 11 agreements ranging from science and technology, education, anti-terrorism, climate, among others, after their talks.
Costa thanked the expatriate Indian community's contribution to Portugal's economy and society.
The two sides signed a number of agreements, including on digital sector and youth exchange.
Costa said several areas of cooperation have been identified like sports, biotechnology and space.