I don't know why you're obsessed with whether India has the same problem. Maybe it hasn't been studied as extensively, or the turmeric there is healthier and hence doesn't need to be colored, or something else. Also the article doesn't say that India doesn't have this problem.
Oh i missed "Dhaka" in the sentence after the one that said lead was found in spices in india, my brain saw "[...] spices in india, [...] despite lead free turmeric"