Whether you are looking at buying a car or property, investing in the stock market or converting your Indian rupess to foreign currency, there is one thing that you will need for each of these activities. What could possibly link these, you might ask. The answer is the PAN card. The permanent Account Number (PAN) Card, issued by the Income Tax Department, is one of the most important documents now a day. The card was issued in order to prevent tax evasion by individuals and entities as it links all financial transactions made by aprticular individual or entity. In this way, the Income Tax Department has detailed record of all major transactions for tax purposes.However, the PAN card also has many other uses besides just being a way for the Income Tax Department to keep tabs on your financial dealings.