Because she's both. Her mom is Indian, and her dad is Afro-Jamaican. That makes her ethnicity both Indian and Afro-Jamacian. There are people out there with mixed ethnicities.
Was she a proud Indian when she chose to go to Howard University, a historically black college? When she joined Alpha Kappa Alpha, a historically black sorority, that must have been odd if she considered herself Indian instead of black.
She has considered herself both black and Indian for a very long time.