Hello Aditya,

Both VIT Vellore and Chennai campuses have good standard and equal placement opportunities.VIT Vellore campus has comparatively better rankings,ratings and reviews.The Infrastructure, ambience and campus life here is also good.The campus is much bigger than Chennai campus but the students are over crowded in Vellore than Chennai campus.Some of the facilities and club activities may not be there in Chennai as in Vellore campus but as far as education and placements are considered, both campuses are good.

For more details regarding both the campuses do refer the below links.

https://www.careers360.com/university/vellore-institute-of-technology-vellore

https://www.careers360.com/colleges/vit-university-chennai

Hope this helps.

All the best!!