In case if you’ve done vaccination in any Indian state, you may receive a call from +911921 number for survey of vaccination. I believe it is to find out if process is correctly implemented till the bottom layer in vaccination drive. Not sure if all are receiving this kind of survey or it is random. Language of Survey is English, there is no option to change the language. It is IVR type or automated call where you’ve to respond yes or no by pressing 1 or 2.
Questions asked in survey are roughly like this.
Question 1: Were you vaccinated on so and so date ? press 1 for yes, 2 for no
Question 2: Did they follow social distancing ? press 1 for yes, 2 for no
Question 3: Post vaccination in case of emergency guidance was given ? Press 1 for yes, 2 for no
Question 4: Were you asked to sit for half hour observation ? press 1 for yes, 2 for no
Question 5: How is your overall experience related to vaccination ? press 1 for yes, 2 for no