You can add your India permanent account number (PAN) to your account if you wish to claim back tax deducted at source (TDS) but don’t have a goods and services tax (GST) registration number (GSTIN). To process a TDS refund for your Facebook ad account, you’ll need to add your PAN.
Before you begin
To add your PAN to your ad account, you have to be the admin of the ad account.
Confirm in your payment settings that your ad account’s business country is set to India. If it isn’t, first change your business country to India.