Hello dear
The primary focus in both are different in electronics its circuit design , circuit behaviour , circuit analysis etc......whereas in ece its signal processing and communication field. Electronics is a broad field whereas ece is broad field but focussed on only one field of electronics both needs btech for 4 yrs.
I hope you get an idea
Thanks

Dear student
Greetings
Mechanical Engineering is an extension of class XI syllabus. You learn about mechanical things such as machines, thermodynamics, engines, cars, design, etc.
Electrical Engineering is an extension of class XII syllabus: Here you learn about electrical stuff such as power distribution and generation, electric motors, transformers, communications (such as wifi, cellphone, etc.), radio, antennas, computer processors, digital systems, transistors, amplifiers, etc.
Thank you

Hi

Electronics and communications engineering (ECE) deals with the design and development of electronic circuits, equipment and machines. Electronic equipment and communication equipment has interconnected everyone in so many ways, such as through mobile phones, TVs, computers or iPads. Electronics is the technology associated with electronic circuits and systems, and is one of the major fields that comes under electrical engineering.

Electronics engineering has many subfields, including signal processing, telecommunications engineering, control engineering, instrumentation engineering, computer engineering and Very Large Scale Integration (VLSI) design engineering. The Electronics and Communications Bachelor of Technology (B.Tech.) course is very similar to the Electronics Engineering B.Tech. course. They differ only in that the former has subjects that focus more on communication engineering. Communications can be analog or digital.

Hope i helped you.

Thank-You!!!!