Yes, anyone with admin access can add anybody as an admin – without any process / approval system in place.
Here is all you need:
The URL of the original admin’s profile contains his or her 12-digit Aadhaar number. All the new admin has to do is replace the 12-digit Aadhaar number with the Aadhaar number of anyone in the country. That person’s details will immediately pop up on the screen (source).
Earlier, The Tribune reported that the ongoing rate for Aadhaar data is Rs. 500 and while UIDAI is denying any such issue, the reality is that your Aadhaar data is up for grabs.
Some persons have misused demographic search facility, given to designated officials to help residents who have lost Aadhaar/Enrollment slip to retrieve their details @thetribunechd @rsprasad @ceo_uidai @timesofindia @firstpost @IndiaToday @ZeeNews @htTweets @TheQuint
— Aadhaar (@UIDAI) January 4, 2018
Meet the Aadhaar Balak. A recap.