Magento

My base currency is set to INR not USD. I am using only 2 currencies INR and USD on my site. When I want to checkout through paypal the INR amount is not converted to USD, although the $ currency symbol is seen on the paypal page but the amount is not converted to dollars.
Can anyone of this great community help me out of this.

Same when i used Base currency as INR then paypal option is not working.

Thanks & regards.