Practice in individual name

Yes, a CA can practise in his individual name and do the attestation work.

i have completed my CA (Inter) & CS (Final) Group1&2 and want to practice income tax so is it necessary to get registered with the commissioner of income tax. please guide me on this matter.

So for that please could u let me know the number of stamps which would be required and also respective formats in terms of shape and contents too for the same