Bengali Muslims, as a rule, give their children Persian or Arabic names. (Sometimes girls will receive Russian names if they sound sufficiently Indian.)
Razib/Rajib/Rajiv is demonstrably of Indo-Aryan etymology, but yeah all of the Bangladeshi Americans, Pakistani Americans, and Muslim Indian Americans I know IRL have Arabic (usually Quranic) or Persian names. And growing up I remember meeting a handful of (female, India-origin) Nikitas.
Promises to name future children after college friends notwithstanding, it's plausible that me and my brother would coordinate baby names so that all our children have names starting with the same letter, since our first names start with the same letter.