Covid vaccine cocktail | Can we mix two vaccines?

After 20 people were given mixed doses of Covishield and Covaxin in Uttar Pradesh's Siddharthnagar district, the negligence of doctors and the health department has now sparked a debate over the use of a cocktail of vaccines for treating Covid-19.
Can two vaccines be mixed or not? The government has not come up with any decision on the mixing of the vaccines, but if it happens? Watch this bulletin to know more.