It's possible that you would need to make changes in your PAN card over a period of time. For example, if you were a spinster at the time of applying for a PAN Card, but now have married and your surname as undergone a change, then you need to change it in your PAN Card as well.
It's also possible that your signature has also undergone a change.
For ladies who have married and wish to change the name on the PAN Card certain documents are required as proof of marriage. These include marriage certificate, marriage invitation card, publication of 'name-change' in gazette, copy of passport showing husband's name (or vice versa).
The applicant is required to fill all the columns of the form and tick the box(es) on the left margin of the appropriate item where change/correction is to be done.
You can also make changes to your signature as well.
If you are an individual other than a married lady and wish to make a change on your PAN Card, in such a case you would need a copy of the publication of name-change' in gazette.
For partnership firms who wish to make changes on their PAN Card, they would need to furnish a copy of the revised partnership deed.
In all cases the relevant form has to be ticked at the appropriate place where the change is so desired, along with the documents mentioned above.
Remember, it's important to make changes in the PAN Card, if your name has undergone a change after marriage. You would be issued a fresh PAN Card with the desired changes, once the application is accepted.
The permanent account number, or the PAN would not under go any change. After all, as indicated - it's a permanent account number.