Central government has launched a scheme called DigiLocker.
Anyone having an Aadhar card can login to
digitallocker.gov.in and upload scanned copies of all the important documents like 10th marksheet, 12th marksheet, Graduation certificate, electricity bill, PAN, Driving License, Passport etc. So whenever, you will need those documents (for verification by govt agencies while applying for any service etc), you can directly give your locker number and it is done! No more hassles of carrying those documents and tons of photocopies.