Hi have a visa to portugal , what is the address in Portugal to collect my Portuguese passport

A visa goes into the passport of the nation you are a citizen, not a new passport of that nation.

Where are you a citizen, where did you give your passport for application for a visa ?

I have collected my BI and have got a Visa to visit Portugal, I want to visit Portugal to collect Portuguese passport, I don't have any acquaintance in Portugal, could you please guide what address I need to go in Lisbon to collect the Portuguese passport