See if you are doing your BTech from a college which is approved by AICTE and recognized by GOI then you will be eligible for the government service examinations both non-technical and technical jobs.

Some of the most preferred exams for technical jobs are:

• SSC JE
• RRB JE
• GATE (For PSU's like: ONGC, BHEL, ISRO, DRDO)

Some of the non-technical examination are:

• RRB
• SBI
• IBPS
• UPSC & state PSC's
• SSC CGL, CHSL

For a list of government examination you may visit the link provided below:

https://competition.careers360.com/articles/sarkari-exams

I hope this answer helps. All the very best for your future endeavors!