The Authorised Person for my TAN is a foreigner and does not have a PAN. What should I do in Step-3 of deductor registration?

Any person who intends to enter into economic or financial transactions, where quoting PAN is mandatory, must have a PAN. In such a case, the Authorised Person has to apply for a valid PAN. Only then can you mention the details in Authorised Person fields in Step-3 of the registration form.