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The album contains photos taken during the observation of the solar eclipse in 1996 at the Hanle site by the IIA team led by Director R. Cowsik. The observation was taken from an IAF (Indian Air Force) aircraft. The album includes photos of inside and outside views of aircraft and an aerial view of the land from the craft. In addition to that, photos of Air Marshal Bijoy Krishna Pandey with R. Cowsik and photos of other Air Force officers who helped the IIA team are archived in this album.

The font contains letters, correspondence, life, achievements and participation at National and International level of Dr.M. K. Vainu Bappu

This fond contains the life history and a brief description of the discoveries of Mr.N.R.Pogson.

This fond was about pendulum clock used at the Madras Observatory manufactured sometimes in 1786. The clock is now in Kodaikanal Solar Observatory and still in working condition.

This item was about the map of part of the environs of Madras showing the relative positions of the Observatory house station and the guns. This map was made by J.Goldingham who was F.R.S. in Madras Observatory and the map was published in Madras Observatory papers in 1826 on page no. 177.

The fond contain compilation of Photographs, Newspaper Clipping, Pamphlets, Correspondence to Chinthamani Ragoonatha Chary and Transit of Venus.

The fond contains observations notes on Madras meridian observations recorded during 1874-1904 from Madrsa Observatory. The observations concern minor planets, stars, equations for the stars i, j, and c, corrections to observed magnetic declination, the Moon and planets, R. Andromeda, Asia, minor planets, and apparent polar distance of stars.

This item was a pencil sketch drawing of Prof.M.K.Vainu Bappu by A.P.Jayarajan

This item was an instrument used in surveying land, alignment, testing, and calibrating optical Instruments. It is basically a refracting telescope. Whose optical elements tilt angles with high accuracy of the order of arcsecs.

The fond contains observations of the meridian circle reductions ( refers to the process of correcting the observed zenith distances measured by a meridian circle instrument ) taken from the Madras Observatory from the year 1862 to 1887. Meridian circle reductions refers to a process in astronomy and celestial navigation that involves observations made with a meridian circle instrument.