Please click below link to update aadhar card details online
http://uidai.gov.in/update-your-aadhaar-data.html
Everything is clearly explained how to update aadhar card details online
in the above link.
Please go through it.
In day today life, we need apply for Passport, Driving Licence, Bike registration, Ration card and etc. So We need to check the status of that applications. This blog provides the information how to check the status of different applications which you had applied.