Hi,
Nothing is tough when you have interest and passion. So you need to study yourself that what is your area of interest and in which branch you can give 100%. Let me brief you about these courses:
Electronics & Communication Engineering
It deals with the electronic devices, circuits, communication equipment like transmitter, receiver, integrated circuits (IC). It also deals with basic electronics, analog and digital transmission & reception of data, voice and video (Example AM, FM, DTH), microprocessors, satellite communication, microwave engineering, antennae and wave progression.
Electrical Engineering
Electrical engineering is a professional engineering discipline that generally deals with the study and application of electricity, electronics, and electromagnetism.
Mechanical Engineering
Mechanical engineering is a professional programme which helps students to understand the working mechanisms of heavy tools and machineries. It deals with construction, design, and manufacture of machines.