What are the procedure to buy property in india. Holding PIO card in Singapore. pls give full details.?

Whether do I need to pay any income tax or property tax.
I am Singaporean. I am holding person of Indian origin card. What I know is foriner is not eliglbe to buy agri land. anyway i am interested to buy land or plot in taml nadu ( Chennai).
Please explain about PAN card. If I need to apply how and where to apply.
Mr. Ajay are you refering permenant address in India?