Hello applicant,

Branch decision is upon your interest and passion.

If you are willing to work with machines , hardwares ,robots you can go for mechanical branch.

If you are willing to work with electrical circuits, analysis and synthesis you can go for electrical branch.

Basically  Mechanical engineering which involves the design of power, energy, and weapons systems, aircraft and transportation products, and other equipment. Electrical engineering involves the design and study of electronics, power, and electrical systems. It is concerned with the use of electricity to transmit energy.

Hope it helps you.