Rapid assessment of the knowledge, risk perception, trust, and acceptance of proposed COVID vaccination among adult men and women of Uttar Pradesh. A formative study was done to inform the RCCE for vaccination. The qualitative study consisted of 28 key informant interviews and 28 in-depth interviews in four districts: Lucknow, Gorakhpur, LalitpurandMoradabad. A close-ended quantitative survey was administered to male and female respondents aged above 50years.RespondentswerecontactedtelephonicallyfordatacollectionbyIEDTeam.