For general information, see the following web page:
https://www.esteri.it/it/servizi-consolari-e-visti/italiani-all-estero/sicurezzasociale/
CERTIFICATE OF EXISTENCE IN LIFE
In order to request for an appointment, you may send an email to: consolare.newdelhi@esteri.it
With effect from Monday, February 21, 2022, this consular service will be available exclusively prior appointment through the portal PRENOT@AMI (https://prenotami.esteri.it) for which registration is required.
It is mandatory to be present at the appointment in person, with a valid identity document / passport and the life certificate form provided by INPS or Citibank.