What Is The Hardest Engineering Course Offered In The Planet?

I am an electrical and electronic engineering student in my final year of a 5 year course. I can't really compare it to any other engineering course as I obv haven't done any other. However I do find it tough. It isn't a very popular course when comparing it to the majority of the other more well known courses such as mechanical, civil, automotive.... I don't think you can classify engineering degrees in terms of hardness due to the vast aspects they all cover. There are easier parts and harder parts in all courses. I do want to express that I think engineering courses are probably the hardest courses to take at university.

My friend has did Plastic engineering and felt so hard

i am a student of biotechnology engineering.This course is newly founded by some universities in our country.I am finding it very hard cause it consist biochemistry,mol bio,bioinformatics,microbiology,plant biotech and othe biological subjets which is little bit descriptive and critical also.So i found it the hardest amng all.