Section 7(i) in The Post Office Savings Certificates Rules, 1960
(i)the holding of a person in respect of all his certificates including Post Office Cash Certificates, 3 ½ percent 10-year Treasury Savings Deposit Certificates, 4 percent 10- year Treasury Savings Deposit Certificates, 7-year National Savings Certificates (II Issue), Bank series and 7-year National Savings Certificates (III Issue)-Bank series but excluding 10- year National Plan Certificates shall be taken into account;
