law: Companies Act, 1956
  Sec 152    -    
  
  Register and index of debenture holders. 
  (1) Every company shall keep in one or more
  
  books a register of the holders of its debentures and enter therein the
  
  following particulars, namely :
  (a) the name and address, and the occupation,
  
  if any, of each debenture holder ;
  (b) the debentures held by each holder
  
  distinguishing each debenture by its number except where such debentures are
  
  held with a depository, and the amount paid or agreed to be considered as paid
  
  on those debentures ;
  (c) the date at which each person was entered
  
  in the register as a debenture holder ; and
  (d) the date at which any person ceased to be
  
  a debenture holder.
  (2)
  (a) Every company having more than fifty
  
  debenture holders shall, unless the register of debenture holders is in such a
  
  form as in itself to constitute an index, keep an index (which may be in the
  
  form of a card index) of the names of the debenture holders of the company and
  
  shall, within fourteen days after the date on which any alteration is made in
  
  the register of debenture holders, make the necessary alteration in the index.
  (b) The index shall, in respect of each
  
  debenture holder, contain a sufficient indication to enable the entries
  
  relating to that holder in the register to be readily found.
  (3) If default is made in complying with
  
  sub-section (1) or (2), the company, and every officer of the company who is in
  
  default, shall be punishable with fine which may extend to five hundred rupees.
  
  
  (4) Sub-sections (1) to (3) shall not apply
  
  with respect to debentures which, ex facie, are payable to the bearer thereof.