As far as CSE or IT is concerned, I believe VIT Vellore has equally better career scope and prospects as IIIT Sonepat. The Only advantages IIIT Sonepat has over VIT Vellore, is the Government College Tag which definitely has benefits besides lower tuition fees.

Otherwise, VIT Vellore has excellent training and placement facilities. Being located near IT and Technology hubs like Bangalore, Chennai and Hyderabad provide excellent scope and impetus to career prospects. Secondly, VIT Vellore has excellent infrastructure, faculty besides providing effective engineering education with a strong curriculum