W8-BEN for an Indian Citizen
According to the Form W-8BEN instructions for Part II, Line 10: Line 10.   Line 10 must be used only if you are claiming treaty benefits that require that you meet conditions not covered by the representations you make on line 9 and Part III. For example, persons claiming treaty benefits on royalties must complete this line if the treaty contains different withholding rates for different types of royalties. In tax treaties, some of the benefits apply to every resident of a foreign country.  Other benefits only apply to certain groups of people.  Line 10 is where you affirm that you meet whatever special conditions are necessary in the treaty to obtain the benefit. If you are claiming that Article 15 of the U.S.-India Tax Treaty, you could use Line 10 to do this. It is important to remember that this form goes to the company paying you; it does not actually get sent to the IRS.  Therefore, you can ask the company themselves if filling out Line 9 only will result in them withholding nothing, or if they would need you to fill out Line 10.