The official currency in Sri Lanka is the Sri Lankan rupee - also known using the currency code LKR. This is not the same as INR. If you’re visiting Sri Lanka you’ll need to exchange your Indian rupees for LKR. It’s worth noting that foreigners aren’t allowed to take INR out of India, and there are limits on how much local currency a resident or citizen of India can travel with. Check out the most up to date details online, and consider alternatives to traveling with cash, such as using a multi-currency account or bank card.