Property Tax - NRI
If you plan to sell your property within 3 years from the date of purchase and make profit, you are liable to pay short term capital gain tax, which is usually TDS of 30% irrespective of your tax slab. But there are a few instances this can be minimized if you are planning to re-invest capital gains into another property or tax exempt bonds. If you plan to re-invest the entire profit, you will be exempt from taxes. Usually you will have 2 years from the date of sale to decide and invest in any other property, if you plan to buy bonds, the time limit is around 6 months from the date of sale.
If you plan to sell your property after 3 years from the date of purchase, you will be subject to long term capital gains tax, which is around 20%. Again, you can avoid paying taxes if you plan to re-invest the money back in other properties or bonds.
If you plan to repatriate the money to your overseas account, you will be allowed a limit up-to 1 million USD per year.
The above notes can help you to get an overview of the taxation, it is recommended that you consult a tax professional to smoothen the process.