Besides this, the hospital was involved in 2 major studies to evaluate the effectiveness of Siddha formulations including but not limited to Kabasura kudineer in patients with mild to moderate COVID-19. One of the studies was a retrospective study that was carried out to test the effectiveness of the siddha formulations on the basis of the data obtained from Medical Records dept. The second was a randomized controlled trial in which patients with mild to moderate COVID 19 were randomized to receive Siddha formulations or standard of care. Standard therapy was given to all patients in the study as a background therapy. More than 350 patients were enrolled in these studies. The effectiveness of hydroxychloroquine was studied as a prophylactic agent among health care workers for COVID 19. This was a multi centric cohort study initiated by ICMR Rational Use of Medicines Centres and carried out at more than 20 sites and SRM Hospital was one of the hospitals which carried out this research. Besides these, a number of other research projects have been carried out at SRM hospital by the post graduates who were posted in COVID ward. All of the above work is either published or in the process of undergoing peer review by journal reviewers.