It is advised to carry Indian rupees with you during the entire tour period. All the international travelers are allowed to carry a maximum of 25,000 rupees while crossing international borders. However, you can bring in up to US$5,000 in cash into India without following any legal formalities. Should you wish to bring in more foreign currency, you will need to fill out a customs declaration form provided by the authorities. Upon arrival in India, you can either use your credit / debit card with pin to withdraw cash from the ATMs found almost in every part of the city, or you can visit a foreign exchange counter at the airport.