GITAM (Deemed to be University), Visakhapatnam

I think there is a mistake in your question.
Because GATE is meant for Post-Graduation courses but it can't make you to get into B.Tech
First of all, you have to complete your B.Tech to be eligible for the GATE.
But, if you want to join in B.Tech CSE in GITAM, you have to appear for GAT entrance exam conducted by GITAM University and the cut-off will be changing every year based on the number of applicants and GAT score around 300+ out of 400 can easily assure your admission into CSE even in Vizag campus.
Even if you are not able to score the cut-off don't be disappointed because later, if you contact to take admissions desk of GITAM, you can get a seat if the seats were still vacant.
All the best.

GITAM University has one of the best campuses in India for BBA education.They offer 100% placement opportunity for students.Having recruiters in software, non-software and technical verticals. The average salary is Rs 1.5 lakhs per annum and highest go beyond Rs 11 lakhs per annum in domestic. In international placement highest is Rs 21 lakhs so far in the campus.
Specialization offered are human resources, marketing, and finance.
The campus has a lot of international and nation faculties who guide the students in career development.
This campus holds direct tie-up for placement with some well known and famous multinational companies like Infosys, TCS, Tech Mahindra, EMC2, THOMSON and Reuters, Walmart, Cisco, Bosch etc. This help student gets placed in international and national jobs. A large alumni network helps the current students in getting a job with excellent placement package.
So I hope the placement opportunities are very vast for students who study on this campus.

GITAM is better ranked than Dinbandhu Andrews Institute. Some of the important points while selecting an institute are accreditation of the institute, institute's infrastructure, teaching faculty, specialization offered, past placements records, tuition fees, city preference, and industry interface. As both, the institutes are having the campus in Bangalore and Kolkata, industry exposure is good for students in either of the college. If possible a visit to college is better option to get a reality check. Also, get in touch with college alumni's through the social network to get information about the latest changes if any.
You can compare the course fee, placements, students review, facilities offered, seats offered on the below link:- https://www.shiksha.com/resources/college-comparison-55734-230776.