I wonder where the specific problem with curry would be. Yes, cooking can be smelly, it is mostly independant of who cooks. Yes, certain spices are especially intense, but in my eyes not very problematic. There is garlic and of course just plain onions in almost any countries cusine. What I personally suffer from, if someone fries fish, that can create truly disgusting smells. Or smokes cigars. They can leave a nasty lingering odor.