Every company who is required to create DRR, shall on or before the 30th April of each year, deposit or invest, a sum which shall not be less than…………of the amount of its debentures maturing (to be redeemed) during the year ending on 31st March of the next year.

15%

The correct answer is option 2- 15%.

Every company required to invest the Debenture Redemption Reserve shall on or before the 30th day of April in each year, a sum which shall not be less than fifteen percent, of the amount of its debentures maturing during the year ending on the 31st day of March of the next year, in any one or more of the following methods, namely :-
i. Deposits with any scheduled bank, free from any charge or lien
ii. Securities of the Central Government or of any State Government
iii. Securities mentioned in sub-clauses (a) to (d) and (ee) of section 20 of the Indian Trusts Act, 1882
iv. Bonds issued by any other company which is notified under subclause (f) of section 20 of the Indian Trusts Act, 1882
v. The amount invested or deposited as above shall not be used for any purpose other than for redemption of debentures maturing during the year referred above.