Don't rely solely on the NIRF ranking. It's better to go and check out the college yourself. Have a chat with students at NIET and other nearby colleges in the Knowledge Park area. Get their opinions about NIET to help you weigh the pros and cons. Be cautious about trusting counselors, as they might be biased due to payment. Also, take what you read online with a grain of salt, as those answers might be sponsored and not truly reflect reality.
I'm in my first year at NIET, and if you're thinking about coming here, don't expect to focus on skill development or enjoying college life in the first year. It's not too different from school and even has a separate campus for first-year B.Tech students, which feels a bit like a prison. During breaks, they lock the gates, so you can't leave. Classes start at 9:10 AM, and the gates close at 9:15 AM. If you're even 10 minutes late, the dean will call your home before letting you in. They claim to be autonomous, but it's not really the case.
They've reduced the number of subjects but increased the number of lectures for each. I'm in the second semester now and have four math lectures three days a week and three electrical lectures daily. You need to maintain an 85% attendance rate, and if you're even slightly below that, they'll put your name on a list for extra classes, which are held after 5 PM on weekdays. Saturdays are for certification courses with very tight deadlines, forcing students to resort to cheating, which doesn't really help anyone.
There's no student library for first-year students, and uniforms are now mandatory, or you'll be fined 1000 rupees. If you miss any workshop for any reason, another 1000 rupees fine. The college life here is quite stressful with weekly tests and sessionals every 20 days.
If you don't get a seat through the fee waiver category, you still have to pay full tuition fees that are 1.4 Lakhs in NIET Greater Noida. After that, you can apply for government-funded scholarships.
If you don't get a scholarship, remember that you can still apply for government-funded scholarships. Most will be for undergraduate students. The cost of tuition fees at most IITs is about 1.4 lakh per annum for a non-Reserved category.