TDS on purchase of property from NRI

Hi,

As per my reading, there is 20% rate at which tds to be deducted while purchasing property from NRI. Please let me know if this is correct.

Also please help on following issues;
1. What if sales consideration exceeds 50L, will there be any surcharge?
2. If amount exceeds 50L but saller is joint holder of property and individually consideration does not exceed 50L, will there be surcharge applicable.

Thank you in advance.

Regards,
Giriraj Gandhi