Section 17(1)(a) in National Housing Bank (Issue And Management Of Bonds) Regulations, 1989
(a)on his delivering the bond or bonds in the form of promissory note or notes and on his satisfying the office of issue regarding the justice of his claim, renew, sub-divide or consolidate the note or notes provided the note or notes has or have been receipted in Form VI, VII or VIII as the case may be, or