You can get your AO Code, which identifies your Assessing Officer's jurisdiction, through a few online methods:
- Visit the NSDL or UTIITSL website and use their 'Search for AO Code' option, selecting your city to view the list of codes.
- Use the 'Know Your AO' service on the Income Tax e-filing portal by entering your PAN and mobile number for OTP validation.
The AO Code, a combination of Area Code, AO Type, Range Code, and AO Number, is mandatory for your PAN application and is based on your address and taxpayer category.