India DTAA rates for NRIs, by country

The maximum tax India may deduct on interest and dividends paid to residents of each country, under its tax treaty with India.

CountryInterestDividends
Australia15%15%
Canada15% (no reduced bank rate; interest on certain Export Development Corporation / Exim Bank loans and government interest exempt)15% if the beneficial owner is a company controlling at least 10% of voting power; 25% in other cases
Germany10%10%
Kuwait10%10%
New Zealand10%15%
Oman10%10% if the beneficial owner is a company holding at least 10% of shares; 12.5% in other cases
Qatar10%5% if the beneficial owner is a company holding at least 10% of shares; 10% in other cases
Saudi Arabia10% (income from debt-claims)5%
Singapore10% if loan granted by a bank or similar financial institution (incl. insurance company); 15% in other cases10% if the beneficial owner is a company holding at least 25% of shares; 15% in other cases
United Arab Emirates5% if loan granted by a bank or similar financial institution; 12.5% in other cases10%
United Kingdom10% if paid to a bank; 15% in other cases10% (15% for dividends paid out of immovable-property income by a tax-exempt investment vehicle)
United States10% if loan granted by a bank or similar financial institution (incl. insurance company); 15% in other cases15% if the beneficial owner is a company holding at least 10% of voting stock; 25% in other cases

India's normal rates for non-residents are 30% on NRO interest and 20% on dividends, plus surcharge and cess. To get the lower treaty rate you need a tax residency certificate and the Form 41 declaration.