Public Provident Fund
If you invest in PPF then I suggest you max it out to 1.5lakhs. Its a safe way of ‘saving’ if not ‘investment’ in a world full of uncertainty. Even if you have other modes of investment to show towards Form 80C deductions, still do it because of the good rate of interest & zero tax on the whole amount.
And deposit the complete amount in one instalment in the beginning of a financial year between 1st to 5th April, that way you earn interest for the whole year, maximize your return.