IIT Mandi is a reputed institute for engineering education in India and is known for its strong emphasis on research and innovation. The electrical department at IIT Mandi offers an M.Tech program with a focus on electrical engineering, power systems, and renewable energy. The program is well-regarded by the industry and academia. The students of this department are provided with ample opportunities to engage in cutting-edge research projects.
Masters from any IIT will have equal worth all you need to do is make the most out of your degree. I know a friend who completed his master's from IIT Mandi in signal processing. He availed all the opportunities offered and invested maximum time and effort. Today he is pursuing his Ph.D. from the University of Texas Dallas and is also a Research Assistant at UT Southwestern.
Overall, IIT Mandi is a great choice for anyone interested in pursuing an M.Tech in electrical engineering.