Hi

Bascically you have 3 options after qualyfing GATE

1. Higher education

With your score you cannot get into IIT OR NIT, but you can easily get into any state run colleges or private university.

Manipal institiute of technology offers very good course in VLSI

2. PSU

with your score again it is difficult to get PSU had you got 5  more marks you would have easily got into top PSUs.

But with 56.67 you can try for

1. AAI

2. NTPC

3. GAIL

4. BEML

3. After GATE students can post of Project Associate or Junior research Fellow( JRC ) into premier institiute like IISC, IIT.