The document is a pay slip of Thomas Royds for the month of March in 1916, Issued by the Assistant Account General office, Madras. During that time he was working as Assistant Director of Kodaikanal Observatory.

The item is a group photo of the staff of the Kodaikanal Observatory on the occasion of Mr. H. M. Bhatia's transfer from the Kodaikanal Observatory during Anil Kumar Das's directorship. The occasion was held at the observatory premises in September 1949.

The item contains a black and white group photo during the transfer function of Mr. Anjaneyalu of Kodaikanal Observatory in 1946. Dr. A. L. Narayan, The director of Kodaikanal Observatory, Dr. Anil Kumar Das, Mr. Anjaneyalu, and other employees can be seen in the photograph.

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 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 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.

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.