Section 409(1) in Arunachal Pradesh Municipal Act, 2007
(1)Any improvement expenses under section 408 shall be charge on the premises in respect of which or for the benefit of which such expenses are incurred and shall be recoverable in such installments and at such intervals, as may be sufficient to discharge such expenses with interest thereon at such reasonable rate as may be determined by the Municipality from time to time and within such period not exceeding thirty years as the Municipality may in each case determine.