The National Database and Registration Authority (Nadra) issued a statement about the Fake Message which is viral on social media about the registration of overseas Pakistanis for voting in next upcoming elections 2022.
NADRA official atwitter account tweeted that Nadra would like to clarify that a FAKE message is being circulated on social media about Overseas Voting. It is clarified that no such message has been shared/issued/published by NADRA.
NADRA message about Overseas voting is Fake

The ECP Election Commission of Pakistan also issued a similar statement and clarified that the electoral body did not publish this message which was shared on social media websites after Prime Minister Imran Khan dissolved the National Assembly and called for fresh elections. There is no such announcement of New Elections 2022 in Pakistan as the case is in Supreme Court of Pakistan.
ECP message about Overseas voting is Fake
So it is advised to all overseas Pakistanis that do not to enter their personal data anywhere for voting because by this thing their personal data can be stolen.