Background/Aim: Several vaccines have been approved against corona virus disease (COVID-19) and distributed globally in different regions. With the distribution of vaccines underway, examining community acceptance of COVID-19 vaccinations is very important. However, 18-45 years of the adult population is educated and motivated but confused about the COVID-19 vaccinations and remained unsure whether they would have the vaccination. This study aimed to investigate community knowledge, attitudes, practice, and concerns of adults 18-45yrs towards COVID 19 vaccinations in Chandigarh, India.

Material and methods: In this study, we sought to determine the knowledge, attitude, and concerns of the general population in the age group 18-45years towards COVID-19 vaccination. A rapid online survey using a chain referral sampling method was done from 731 people were collected from 24.08.21 to 5.10.21.The primary outcome variable was the general public's willingness, knowledge, and attitude towards COVID-19 vaccination. The associated factors of their experiences, concerns, and related side effects among youngsters post-vaccination were identified using regression analysis.

Results: A sample of 73% of people participated and completed the study questionnaires, including 372(50.9%) females and 359(49%) males. Only 70.3% of the people received the vaccination, and 70.9% of participants gave no history of previous COVID-19 infection. Just above half of the participants, 50.2%, believed to know the vaccine's effectiveness, whereas 88.1 %( 644) participants understood the importance of vaccination against this disease and believed that the COVID-19 vaccine is essential for all of us.

Conclusion: Despite limitations, the study confirms that surveys are a suitable method to evaluate and assess attitudes, practice, and concerns of the general population about COVID-19 vaccination, which can be helpful to adapt medical communication strategies for a better understanding of the value of immunization.