Study design and population
This was a randomized, waitlist-controlled trial with a 1:1 allocation ratio, utilizing a simple random sampling method for recruiting eligible participants. The study commenced after obtaining due approval from the institutional ethics committee (AIIMS/IEC/20/733) and registration with the Clinical Trial Registry of India (CTRI/2020/11/029136).The population for this study consisted of HCPs, including faculty members, resident doctors, medical students, nursing officers, and nursing staff posted at high dependency units, critical care units, intensive care units, and emergency departments of a tertiary care hospital in north India.