The item was about the astronomy progress in India and the world. The evolution of astronomy in India and the world, particularly in the 18th and 19th centuries, and the development during the British era in India. Madras Observatory Genesis started navigation support for East India Company. Later, it evolved into one of the finest observatories. M. K. Vainu Bappu also spoke on how astronomy is a subject in Indian universities when it comes to the world's most developed countries in sciences.

The fond contains newspaper clippings related to Kalki from 1987-08-10 to 1988-03-19

The album contains photos of the Jupiter event: information regarding the date and the observatory is unavailable.

This letter was to replying Dr.M. K. Vainu Bappu for telling the improvements required in the spectra for H & K emission.

This item was about the observations of great September comet of 1882 made on 11th September 1882. Observed from Madras Observatory by N. R. Pogson.

This item concerns about the rare white light flare recorded in hydrogen alpha at Kodaikanal Observatory. These observations were taken on photographic films or plates and digitized for scientific research purposes.

The book The Moon Her Motions, Aspect survey, and Physical Condition is written by Richard A Proctor. It was published in 1907

This item was about the French father named Richaud spotted the first comet in India in 1689 . He also made an important discovery of the double star Alpha Centauri in the southern skies using a telescope, marking the first use of a telescope in India. Additionally, he was the first to observe Halley's Comet.

This item was about an important day in astronomy as the Halley's Comet was sighted at the Kavalur observatory. According to Prof. K. R. Sivaraman, the chairman of the Indian Halley observation Program, the sighting on September 3 confirmed the earlier visibility in a photograph taken on August 29 by Dr. K. K. Scaria of IIA using the same telescope at Kavalur. Prof. Sivaraman also mentioned that further scientific observations of the comet would be made once it developed its tail. This is an exciting development for astronomy enthusiasts and researchers alike.

The fond contain correspondance of M. K. Vainu Bappu with C. V. Raman and mentors, donated by Mrs. Yemuna Bappu to IIA archives.