Is ECE the toughest branch?

No, being a student pursuing ECE, I can tell, it isn't a tough stream. If you can manage studying 1 hour per day (at least) then it won't sound difficult for you. I would suggest studying whole semester instead of managing all the chapters just before exam. Once you invest your time, you would find

Hello Vedant, As this is a core branch so it is little bit tough but there are still tougher branch rather than ECE so don't worry if you wants to take this branch then take with your hard work you can achieve anything.