The item is related to the visit of Prof. Sydney Chapman to the Kodaikanal Solar Physics Observatory on 1948 December 31. Sydney Chapman was a British mathematician and geophysicist who contributed to the kinetic theory of gases, solar-terrestrial physics, and the Earth's ozone layer. The photo shows Prof. Chapman and Dr. Anil Kumar Das, the observatory's director, sitting with the other staff. The visit of Prof. Chapman was a noteworthy feature of that year.

This item was photo of visit of Prof.S.Chandrasekhar and Mrs.Chandrasekhar along with Prof.M.K.V.Bappu in IIA, Bangalore campus.

This item was about the visit of the Prof.S.Chandrasekher and Mrs.Chandrasekher in 1981. Dr.M.K.Vainu Bappu received them and visited the campus which was under the construction at that time.

This item was about the image of visit of former Prime Minister Jawaharlal Nehru to Kodaikanal Solar Observatory in 1961.

This item was about the visit of the Prof.S.Chandrasekhar and Lalitha Chandrasekhar in the optics lab of IIA Bangalore campus. Dr.M.K.Vainu Bappu explaining about the instrument from the optical lab.

The item is a black and white photograph of Prof. Meghnad Saha's visit to the Kodaikanal Observatory in 1945. He was a member of the planning commission set up in 1937, and he is an Indian astrophysicist who is remembered for his theory of thermal ionization.

The item contains a photograph related to the visit of Russian astronomers to the Kodaikanal Observatory on 19 January 1955. The photo shows four Russian scientists and the staff of the Kodaikanal Observatory.

The item contains a photograph related to the visit of Prof. Viktor Ambartsumian, a Soviet Armenian astrophysicist and science administrator, to the Kodaikanal Observatory during the directorship of Anil Kumar Das. The photo taken in front of the 20-inch dome of the observatory shows Prof. Viktor Ambartsumian, Anil Kumar Das, and the staff.