For information on the rules regarding acquisition of Italian citizenship. Refer to the Consular Services Guide of the Ministry of External Affairs and International Cooperation:
Citizenship – Ministero degli Affari Esteri e della Cooperazione Internazionale
For information and required documentation for recognition of Italian citizenship for descendants of Italian nationals (iure sanguinis) applicants permanently residing within the jurisdiction of the Embassy of Italy in New Delhi, please see the following page:
Forms – Citizenship application for descendants of Italian national’s form and info