GOVERNMENT OF INDIA CERTIFICATE IS NOTHING USE .YOU CHECK NIRF RANKING,COLLEGE FACILITIES AND PLACEMENT STATICS ETC.IIIT DELHI,HYDERABAD,BANGALORE ALL ARE DEEMED UNIVERSITIES LIKE VIT,SASTRA AND AMIRTA.VIT CSE HIGHEST PACKAGE IS 39 LAKHS BUT IIIT KPM IS ONLY 10 LAKHS.MOST OF 5YEARS INTEGRATED COURSES ARE ZERO PLACEMENTS.NOW CENTRAL GOVT GOING TO PRIVATISE ALL IITS,NITS ETC AND FOREIGN UNIVERSITIES MIT,HARWARD ETC GOING TO LAUNCH IN INDIA.MODI GOVT NEW POLICY IS ALL ARE GOING TO PRIVATISE FOR BETTER QUALITY AND REDUCE THE STUDENTS ENTRANCE BURDEN .BETTER TO CHANGE THE OLD MENTALITY AND EVERYTHING WILL BE PRIVATE

Hello dear!!! 

I would definitely suggest you choose the IIIT kanchipuram as its a government institute and VIT Chennai is a private one. And the degree certificate from IIIT kanchipuram will have somewhat greater value than the VIT Chennai. VIT Chennai also costs you more fees than the IIIT kanchipuram. I hope this helps. 

Thank you