Dear Vijay 

Since you completed electronics  you can write lots of exams.

You have to put lots of efforts and time for government exams 

The list of exams you can apply 

1.staff selection exmas 

2.state exams 

3.goverment electronics companies such as Bell , Hal etc 

For this you have to keep visit the particular website for application dates and deadline 

Once you apply start to prepare 

Best of luck 

You can work in below sector for government job

1)Indian railway.
2)DRDO
3)BSNL TTA
5)MTNL
6)DVC
7)Electricity board,
8)NTPC
9)BANK CLERK
10)Primary School Teacher.

Good Luck!!