My mom has been to India to study yoga there over ten times. Great, great! It is much less "unsanitary" than many people in the U.S. believe. Yes, there is pollution, but that's not what you're worried about, is it? There are always other alternatives to the food, give it a go with something not-so-spicy, like something with yogurt, and tentatively move up the "spice chain". The only ailment my mom sometimes suffers is constipation, and before she goes she asks her doctor if she can have a med to relieve that. I say go!
<3 Anya--
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