Sec 80CCF is an additional tool to save taxes besides using the provisions available under section 80C up till Rs. 1 lakh. Make use of the same as it is a legal means to save taxes.
Section 80CCF allows an individual to get an additional Rs 20,000 savings as this much amount can be claimed for exemption by investing in long term infrastructure bonds.
However a word of caution that read the fine print as finance ministry had allowed this proposal for specific number of years only.
You can also check out income tax exemption on house rent to claim the same as one must use all the means to save tax as money saved is money earned and these all are legal means to save tax.