To decide a course’s worth depends not only on the subjects dealt with but also on the aptitude/expectations of the student. 

It would be good to keep in mind that power electronics is quite a vast field. Electronics Design and Technology is like any other specialization offered by NITC.

If you go in-depth you get to know that this course is a blend of VLSI and embedded/system design.If you are interested in the VLSI domain, then EDT is definitely your way. Most of the subjects are shared with Microelectronics & VLSI branches.

Okay, let us take a look at the placement scenario:

• Placements are a bit off for M.Tech students relative to B.Tech students at NITC.
• Several core VLSI companies (TI, Broadcom, Nvidia, Synopsys, etc) end up hiring mostly B.Tech batch.
• It also depends on your academics too. 
• Intel usually hires interns during the second year. 
• These internship opportunities are available only to VLSI and EDT students mainly.

Though, the chance for placement in core companies directly is relatively less. But, if you manage to maintain your CGPA on or above 8 you have a chance to get into a good internship opportunity. There will be internship opportunities available in companies like Broadcom, Intel, and Cypress.

Most of these guys selected will be converted to full-time after one year of internship. You can do an internship and Second-year M.Tech main project at the same time. If you are really good you can also try for an internship from other branches like Telecom and Signal Processing.