Hello,

Main difference between the two is-

ECE: Here, you need to deal with Electronics with some part of communication. The subject uses the scientific knowledge of the behaviour and effects of electrons to develop devices, systems, or equipment that uses electricity as part of its driving force. Also it contains basics on electrical machines and more on integrated circuits and communication systems.

IT: Information Technology deals with the use of electronic computers and computer software to store, protect process, transmit and securely retrieve data. IT professionals perform a variety of tasks that range from installing applications to designing complex computer networks and information databases.

Hope this helped  

Good luck! 

You can choose the barnch according to your interest or you can go for CSE it is the most demading branch among students.