Aadhaar-PAN linking via SMS: ensure name and date of birth match to enable linkage for tax records. Aadhaar must be linked to PAN by sending an SMS in the format UIDPAN <12 digit Aadhaar><10 digit PAN> to the designated short codes; linkage will be effected only if the taxpayer's name and date of birth on PAN match those on Aadhaar.