The Embassy will no longer issue PIO Cards as it has been decided by the Government of India to merge PIO and OCI Cards into one card.
Link to the announcement:
OCI Registration (In Lieu of PIO-Card)
Government of India have recently announced merger of existing PIO cards with OCI cards. In this process, Government of India have now decided to issue OCI cards in lieu of the PIO cards to all existing PIO card holders without payment of any registration fee.
In this regard, PIO card holders may apply online through this website:
https://passport.gov.in/oci/capchaActionPIO for issue of OCI cards.