I believe you are referring to branches of Engineering regarding Government Jobs. I personally believe Mechanical Engineering has a huge number of vacancies in PSUs as well as Public Research Organizations like BARC and DRDO through GATE Examination. Most of the Top PSUs like BHEL, Nalco, NTPC, SAIL, IOCL, ONGC, BPCL, PGCIL, GAIL open for Mechanical Engineering Positions. Besides this Mechanical Engineering Graduates can also appear for the UPSC ESE Examination for the Prestigious Indian Engineering Service Positions with Government of India. For more information about the Branch of Mechanical Engineering and its career scope and prospects do follow the link below

https://www.careers360.com/courses/mechanical-engineering-course