Hello,

Lateral Entry has an advantage as it prepares you for Engineering as you will be better prepared. It will increase your career perspective. If you do B.Tech after your diploma then you can get a better job after B.Tech. A student doing job after B.Tech would get double the salary one get after Diploma. So there are no disadvantages of doing B.Tech Lateral Entry in  ECE as it is the fastest growing field.It is mainly focused on transmission of signals.

Hope this helps you.