The lectures covered a wide range of topics, introducing the basic important topics of the field, which included radiative processes, stellar structure and evolution, the Sun, compact objects, galaxies, galactic dynamics, active galactic nuclei and jets, gravitational lensing, x-ray astronomy, fluids and plasmas, general theory of relativity and cosmology, structure formation, photometry and spectroscopy as well as recent advances. The latter included the exciting field of gravitational wave astronomy and LIGO, machine learning, quantum clocks, and mega projects such as the Thirty Meter Telescope, LIGO, Aditya-L1 and the Square Kilometre Array.

There were about thirty participants from higher educational institutions from across the country. An online quiz was held after the Course, and Certificates of participation were given to all those who performed satisfactorily. Vaidehi Paliya and Team ACE IUCAA coordinated the Refresher Course.