law: Companies Act, 1956
  Sec 135    -    
  
  Provisions of Part to apply to modification of charges. 
  Whenever the terms or conditions, or the extent or operation, of
  
  any charge registered under this Part are or is modified, it shall be the duty
  
  of the company to send to the Registrar the particulars of such modification,
  
  and the provisions of this Part as to registration of a charge shall apply to
  
  such modification of the charge.