Hello Shyeya, 

The Electronics and computer engineering at Thapar University is a very good option as Thapar is a very know college in india. Now talking about the placement, 75% students get placed in the core like IT and consulting. The average placement for the year 2017 was 6 lakhs with 70% placement.

I recommend you to join ECE in Thapar and try to keep your CGPA above 8.4 and you will surely get placed in some good companies. 

I hope you will find my answer helpful. 

All the best.