The letter was an acknowledgment of the photoheliograph received and experiences shared by using equatorial telescope to take solar photographs.

This fond encompasses materials centred around the achromatic telescope and its diverse mountings. It features detailed figures of the telescope and incorporates a comprehensive catalogue of instruments crafted by Troughton and Simms.

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.

The album contains photos of the briefing of the National Large Optical Telescope teams held in IIA Bangalore campus in 1993.

The album contains photos captured during the meeting on UVIT-PDR (Ultra Violet Imaging Telescope on Astrosat) held at IIA Bangalore campus on 3 March 2006. IIA is collaborating with ISRO, Inter-University Center for Astronomy and Astrophysics (IUCAA), Physical Research Laboratory (PRL) and Tata Institute of Fundamental Research (TIFR) to develop an UltraViolet Imaging Telescope (UVIT), which is one of the payloads on satellite Astrosat.

The CD contains photos of the ceremony of J. C Bhattacharya's 1.3 meter telescope. It also contains photos of various eminent persons' speeches etc.

The album includes photos of the unveiling ceremony of the Vainu Bappu Telescope, also known as the 90-inch telescope, at Kavalur Observatory on 6th January 1986. Mr. Rajiv Gandhi, who was the Prime Minister of India, unveiled the plaque of VBT. Along with this photo, the album comprises images of the Vainu Bappu Observatory telescopes at Kavalur.

The photographic slides contain images of the Kavalur building construction, the 40-inch telescope and its nearby places.

The photographic slides contain images of the 40-inch telescope, its parts like the plate holder, Cass coude ring, and observer guiding at Cass coude focus.

The photographic slides contain images of the 15-inch telescope in Kavalur from 1969 to 1971.