Grievances and Inquiries can be made on the following numbers,
You must have your Enrollment number or Aadhaar number with you for reference.
|Aadhaar Card Call Center||1800 300 1947|
|Letters||PO Box 1947,GPO Bangalore-560001.|
UIDAI Head Quarter
Planning Commission, Government of India (GoI)
3rd Floor, Tower II, Jeevan Bharati Building,
New Delhi – 110001
list of Regional Head Quarter can be obtained by visiting the link http://uidai.gov.in/regional-offices.html .