I have wide verity of interests but here are some from academics related one
I have learned about this during my 2nd year intern at Birla Estates Pvt. Ltd. Personally It was great because mostly what I did was Decision Science so everything was logical.
I explored it last year under an IITKGP proff, just out of curiosity, and it is a really nice subject. This field is vast, yet I have read some books to explore it and by far to my knowledge I found it very interesting.
Okay just to clarify. I have done ML but I am not that much into AI. But yes, I love AI's real life applications. Talking of expericence, I have done some projects in ML (self + course project).
From last few months I have started exploring this field and to be frank, I am in love with it. Right now , I am trying to learn the application of mathematics for finance so that I can explore it in full depth.
I have already mentioned finance but Trading is my favourite. From Fundamental and Technical Analysis I am the Fundamental guy, because one day my PC is going to do the Technical Part for me :)
Apart from all these I love exploring new fields, independent of the fact whether the are related to my life or to my core field. Some of my personal favourite are Philosphy, History, Poetry, etc.
Just some of the funtime activities I used to do in free time
Brief details of key projects I have done.