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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.

The item is a black and white photograph taken at the retirement party of Mr. Paul Chinnappan, an employee of the Kodaikanal Observatory. The past director, Dr. A. L. Narayan, Paul Chinnappan, and other employees of Kodaikanal Observatory in 1945 can be seen in the photograph.

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 is related to the visit of the astronomical planning committee in April 1949 at Kodaikanal Observatory. The photo shows Dr. Anil Kumar Das, other committee members, and observatory staff.

The item is related to the first Independence Day celebrations at Kodaikanal on 1947 August 15. The first photo is a group photo of all members sitting on the front side of the observatory. The second photograph is of the flag hoisting by the Director, Dr. Anil Kumar Das. All the names of the participants are written on the back side of the photograph.

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 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.

The photograph of A. A. Narayana Ayyar was taken in 1913 at Solar Physics Observatory, Kodaikanal.

This item was about the page from M.S. Records stating that the Madras Observatory was established in 1786. The Madras Observatory was first was established in 1786.

This item was about the photograph of granite pillar in meteorology department compound at Nungampakkam, Chennai as seen today. In the compound of the Meteorology Department in Chennai, there is a 15-foot tall granite pillar weighing 10 tons. This granite pillar is part of the Regional Meteorological Centre in Chennai and is preserved as a monument. This is the place where Madras Observatory was existed.