Last week, I got email from one of the visitor of my website asking for the Govt. of India official notification in written regarding PPF limit increased to Rs. 1 lac under Sec80C as their accounts department is not accepting their PPF investments for tax savings. This is the problem with many companies. So, you can download the Gazette of India informing the recent changes in post office schemes like PPF, NSC, MIS, RD etc. and show it the concerned department.