India is third phase of vaccination drive. Initial vaccination task opened for doctors, nurses and frontline workers. And then for the people above the age of 45 years and now all the citizens between the age of 18 and 44 can get themselves vaccine in the country. So, they first have to register on the government official website called Cowin using your Aadhaar card, pan card, passport or any such identity proof. Then you must book an appointment to get your vaccine dose, so when you get your first dose of vaccine you get a provisional vaccination certificate and when you receive your second dose of vaccine you will get a final digital vaccination certificate. So, what is this vaccine certificate and why do you need it.