Section 412. Accrual of interest

In any action, petition, order to show
  cause or other proceeding wherein interest accrues from the date of  the
  inception of the action, petition, order or proceeding, said entitlement
  to  interest shall not begin to accrue until service is completed by the
  actual index number being properly depicted on the summons and  provided
  to the party to be charged with the payment of interest.