This letter was to inform that C. V. Raman was greatly obliged for M. K. Vainu Bappu's letter of the 8th July 1954. He got one of the Bausch and Lomb catalogues and was very favourably impressed by it and intend to go ahead and purchase one or more of these gratings for his work.

This letter was asking question on using telescope mirrors made of cast aluminium or other light metal, which could be cheap and easy to make and also what kind and size of grating, its makers and price to building a solar observatory.

This item was about the unused telescopes. It was unfortunate to hear that the telescopes that allowed scientists to photograph the Sun was now lying unused and gathering dust in a mechanical workshop at IIA, along with two other instruments that have met the same fate. According to a senior scientist at the institute, these instruments were dumped in the workshop and only brought out and exhibited during visits by VVIPs.

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.

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.

This item was about the Kavalur telescope was installed at the Indian Institute of Astrophysics' field station. It was housed in a specially-erected tower with a revolving dome and was known as Asia's largest telescope. Currently, the institute is in need of a more powerful telescope to carry out comprehensive research on the sky.

These photographic slides contains drawings of porters, telescopes, and other astronomical instruments.

These photographic slides contain the images of the spectrometer, and Ondrej telescope related to the Optical Science Department of Royal Observatory, Edinburgh.

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