Archaeological excavations in Goa are conducted by institutions like the:

Archaeological Survey of India
Goa University
State Department of Archaeology
All of the above

The correct answer is: All of the above.

The Archaeological Survey of India (ASI) is a government agency under the Ministry of Culture of the Government of India that is responsible for the archaeological heritage of India. The ASI was established in 1861 by Lord Canning, the then Governor-General of India. The ASI has its headquarters in New Delhi and has regional offices in different parts of the country. The ASI is responsible for conducting archaeological excavations, surveys, and explorations in India. It also maintains and protects archaeological sites and monuments in India.

The Goa University is a public state university located in Goa, India. It was established in 1984 by the Goa University Act, 1983. The Goa University has its main campus in Taleigao, Panaji, and has off-campus centers in Margao, Mapusa, and Vasco da Gama. The Goa University offers undergraduate, postgraduate, and doctoral programs in a variety of disciplines.

The State Department of Archaeology is a government department under the Ministry of Tourism of the Government of Goa. The State Department of Archaeology is responsible for the archaeological heritage of Goa. The State Department of Archaeology conducts archaeological excavations, surveys, and explorations in Goa. It also maintains and protects archaeological sites and monuments in Goa.

Archaeological excavations in Goa are conducted by institutions like the Archaeological Survey of India, Goa University, and the State Department of Archaeology. These institutions work together to preserve and protect the archaeological heritage of Goa.