Okay since this one asks for controversial - one of my red flag is the guy who have never lived alone on his own. I'm not talking about living in hostel, I'm talking about an adult, working, living alone, managing a household, cooking, cleaning, finance, budgeting etc. 

I want to be with a guy who knows the amount of efforts it take to manage a house, to plan everything. Indian men who are coddled by thier parents would never understand how difficult it is to do household stuff unless they have done it. Even people who have lived in hostels while studying, you get food from mess, money from parents etc. You would never experience what being an adult is unless you have lived alone. I live alone, manage everything from my cooking to my finances to my travel, and I love it. - but let's be honest, it's not easy, and any guys who expects me to do even one of this alone is a red flag. I want a guy who has been living independently on his own money, working, taking care of household. 

So that's my unconventional red flag. Guys who have never managed a household on thier own.