1- You can try for GATE and if you got high score then you can make a entry into ISRO,DRDO etc.

2- You can try for Railway, Bank jobs etc.

3- You can also try in 

1.Private Software company:-

1.TCS.

2.CTS.

3.WIPRO.

4.ACCENTURE.

5.IBM.

2.Government Software company:-

1:BHEL (Bharat Heavy Electricals Limited)

2:ONGC(Oil and Natural Gas Corporation)

3:GAIL(Gas Authority India Ltd )

4:HAL (Hindustan Aeronautics Limited)

5:SAIL(Steel Authority of India)

4- You can persue M.tech or MBA

All The Best!!