The photographic slides contain images of Antarctica by Jagdev Singh. It includes images of the telescope, National Physical Laboratory(NPL) tower, iceberg, lake and mountain in Antarctica.

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.

These photogrphic slides contain IR Photometer of Leh

These photographic slides contain the 6-inch telescope at Mount Nimmu top on an astronomical site survey at Leh-Ladakh during 1984-1989.

These Photographic slides contain compressed photographs of a 20-inch telescope building, dome, guest house, photometer, and Bhavnagar telescope at Leh.

These photographic slides contain compressed pictures of the set-up of the astronomical instruments like Hydrometer, wind instrument, etc. at the top of Mt. Nimmu.

These photographic slides contain pictures of sightseeing on the way to Leh from Delhi. It contains survey pictures of the West hill of Mt. Nimmu and the base camp of Mt. Nimmu, the Himalayan ranges, and the set-up on the East hill of Mt. Nimmu.

This fonds consists of photographic slides associated with Ross Laboratory in Secunderabad. One of the images showcases a panoramic view of the Ross Laboratory, while the second image captures the Tableau Memorial dedicated to Ronald Ross.