Do you think that African man would have really defeated me even though he is a foreigner in my country?

In my previous post, i shared how this African man (probably a Nigerian) tried to confront me in this hospital in our city Bangalore in India where i went for my father's health check up. I just shown him a neutral hand gesture and said him Aye yo man but he got confused and tried to ask me about it and confront me. He even came out of the cabin he was waiting in and was approaching me. I got a bit intimidated and walked fast upstairs. After my father's treatment was done, i went downstairs again and bumped into him immediately and he asked me about the hand gesture. I said him its just a bro-code and was greeting him. He asked why did I run and whether i took any photo of him. But i have shown him my phone gallery and there was no photos.

He was then reassured and left but he was serious and confident enough to confront me about it in my own country. I felt a bit intimidated as he was quite big built, same height as me(5'9-5'10), has a strong body and has a big head and face. But do you think he would have got aggressive and could defeat me in a fight? He is still a foreigner and I am an Indian? Can he defeat me in my own home turf? I am 24 so i know India for 24 years of my life. Even though I was born in Siliguri in West Bengal in India I live in Bangalore since 2008 so I know the city way more than him. He is either an expat or a medical tourist like most of the Africans in the Hospital are. What do you feel?