Hey!

No,you cannot use your 12th ID card to correct your name in Aadhar .UIDAI(Unique Identification Authority Of India) doesn't accept school or colleges ID cards as valid proof for name changes.For such corrections,you need a government-recognized document like your passport,PAN card,ration card or even your board- issued marksheet (10th/12th).

So,if you want to update your name in Aadhar,use one of the accepted documents at an Aadhar Seva Kendra or upload it on the UIDAI portal .