law: Company Law Board Regulations, 1991 
  38. Petition under
  
  section 397 or 398 – 
  A petition under
  
  section 397 or 398 shall not be withdrawn without leave of the Board, and where
  
  the petition has been presented by a member or members authorised by the
  
  Central Government under sub-section (4) of section 399, notice of the
  
  application for leave to withdraw shall be given to the Central Government.