The Aadhaar number will be stored in a centralized database of India. It will also be linked to the basic demographic and biometric information i.e. photographs, ten fingerprints and iris of each individual. https://wbxpress.com/aadhaar-card-in-west-bengal/
Are you a Govt. employee? then no worry. department will intimate you to open aadhaar card. if not, then no hurry. please wait for the local media to announce different enrollment camp in your city to assist opening aadhaar card. it is the responsibility of the govt. to provide every individual of India to give UID Aadhaar Card free of cost.
5: Yes, I personally know that it is still continuing at Central Bank of India near Kolkata Raj Bhavan at 4 & 4/1 Red Cross Place. Just visit the branch with required documents and get it done within an hour.
7: You can contact by email/ letter/ fax /phone, as learnt from the official website of Unique Identification Authority of India (uidai.gov.in), as follows: Voice – 1800-180-1947 Fax – 080-2353 1947 Letters – PO Box 1947, GPO Bangalore – 560001 Email – email@example.com