Link Aadhaar with PAN SMsing UIDPAN <Aadhar number> <PAN Number> to 567678 or 56161. You can also go to www.incometaxindiaefiling.gov.in & use ‘Link to Aadhar’ link available on left side. In case of name mismatch, correct either Aadhar (check utiitsl.com for more info) or PAN (tin-nsdl.com).