The photographic slides contain images of the 40-inch telescope control desk, it's construction, reparing of it's dew cap from 1971 to 1984.

The photographic slides contain images of Ritchey Chretien, Raheem and Nadhan at Kavalur, a rite of the first hut, a 16-inch telescope, a 30-inch drive circuit microprocessor, ribbon cutting at STARS(1977 Jan 23), 6-inch telescope, Schimt telescope, etc in Kavalur Observatory.

The item was about the rich tributes paid to the noted Indian astronomer M. K. Vainu Bappu. Scientists of Bombay at a condolence meeting held at the Nehru Planetarium on August 22. The director of TIFR said M. K. Vainu Bappu was a giant among astronomers and also suggested that the famous 90-inch telescope should be renamed after him. It also speaks on the M. K. Vainu Bappu-Wilson effect and also the first Indian to discover a comet that had been named after him.

The album contains photos taken during the 25th anniversary of the Vainu Bappu Telescope (also called VBT, 2.34m telescope, and 90-inch telescope) installed at Kavalur observatory in 1986. Photos of the jubilee ceremony meeting, presenting a miniature form of the VBT to the persons who were working for VBT by M. G. K. Menon, publishing a book titled ' Vainu Bappu Telescope- Silver Jubilee 2011' by M. G. K. Menon and S. S. Hasan, a talk on the VBT inside the telescope building, exhibition on the theme of VBT in the library of Bangalore campus are organized.

The letter is about water vapour observations. Bappu was also asking whether the point source lamp was used. He also mentioned that he would be in Bangalore on April 27.

This letter was about spectroheliograms that Saxenas sent to him. He suggested to improve on this by another factor of 200%. He explains his idea to work on spectroheliogram.

This item was about the commissioning of aisa's largest telescope. The 230cm dimetre mirror of the gaint telescope had already been polished and despite having some import issues with a vital component, the project is on schedule and there were no hitches during the commissioning process.

The album comprises photos of the second workshop on the Vainu Bappu Telescope at Vainu Bappu Observatory, Kavalur, from 19 to 20 April 1990. Images of the discussion and participants, the outdoor and indoor views of the observatory and the staff of the VBO can be seen in the album.

This item was about the interview with the director of IIA, Dr. J.C. Bhattacharya, he discussed details about the Kavalur telescope installation and its capabilities. As a co-discoverer of the rings of Uranus, Dr. Bhattacharya provided insights into the telescope's design, how far we can see from it, and other aspects of the project. He answered all questions thoroughly and provided a comprehensive overview of the telescope and its potential for sky research.

The item was about the design, fabrication, installation, and testing of a prime focus photometer for the 2.34-m M. K. Vainu Bappu Telescope. Photometric observations of a faint, rapid, variable star, 'AM Canum Venaticorum', were obtained during the first series of experiments. Later, Rajamohan was the project leader in discovering new objects in the solar system. Astronomers at IIA are actively engaged in the study of supernova phenomena.