very important for NRIs, PIO & OCIs to keep their PAN cards updated.
PAN Card is a very sensitive Indian ID proof document, thus it
becomes very important that even non-resident Indians living abroad
keep their records updated in the Income Tax Department of India.
These 'Corrections or Changes' can vary from: Address Change,
adding foreign address, Name change or correction in name, signature
mismatch, father name correction, surname change, maiden name change
and many other significant changes in your Indian PAN Card Number.