Only Interest Income. Deductions/Exemptions available for unemployed if interest income above limit

HI,

My interest income exceeds taxable limit but not sure which standard deductions and other exemptions I can claim while filing ITR1? Will deductions under 80c also available. I am living on rent but managing to pay. Can I claim HRA. Though I withdrawn pf after 5 years, my account was inoperative for 2 years, so I have to pay tax on this interest of 2 years. Which deductions and exemptions are available to save tax if I have no other income except interest income. Thanks