6th Sem(B.Tech CE). I have checked few of the IITs PhD eligibility criteria: 75% b.tech + Valid Gate Score. Hard to get 75%, although can get 70% in b.tech. Also, my gate preparation is decent i.e. I will easily score the cut off. Which iits/nits Phd eligibility criteria: 70% b.tech + Gate score?

Hello student IIT Delhi has eligibility criteria of 70% marks or 7.5cgpa out of 10 point scale for admission into full time PhD course. Also candidates have to appear and clear the GATE Entrance Examination.

You can also check the eligibility criteria from the link mentioned below -
http://academics.iitd.ac.in/content/minimum-qualifications-admission-full-time-phd-programmes

Gate eligibility - Candidates must have passed graduation in engineering/technology or Masters degree in any relevant science subject.

Feel free to comment if you have any doubt
Good luck