i got following email from ntpc-
' We are pleased to inform you that NTPC Ltd. has issued, by way of bonus, one (1) fully paid-up, secured, non-cumulative, non-convertible, redeemable, taxable debenture of face value of 
12.50 (Rupees Twelve and Paise Fifty) each, for every one (1) fully paid-up equity share of face value of 10 (Rupees Ten) each held by its members as on the record date i.e. March 23, 2015 '
they issued me 100 debentures, then what benifit will i get in this case