JEE Main

Hello, hope you are doing well.
As I can see, this college was established in the year 2016 and it has been 2 years that this college is providing education service in architecture. So it is very tough to tell you about the good or bad for this college. If you have qualified NATA, then you must go for a government college.

NSIT and DTU are the best colleges in Delhi, which take admissions on the basis of your JEE (Mains) rank. I have mentioned rank, and not JEE Mains marks because there is a huge difference, due to the inclusion of qualifying examination marks in the calculation of rank. Your rank primarily depends on your boards percentage. If you have a percentage of 95+ in boards, you will definitely get a good branch in these colleges if your score is above 150.

Hello, hope you are doing well.
For general candidate students, DAIICT All India cut-off rank is around 15835 to 15883. You need to score more than 175 marks in your exam in order to get this college.
This cut-off is for last year, this year, it may slightly vary, will not go for a big change.
All the best.

Without being able to qualify in any of the above exams, you won't get admission in the colleges which offer admission on the basis of these two exams, including IGDTUW. I would suggest you go for private universities which have their own entrances.

No, but you won't be able to get a seat in NIT. Moreover, trying for lower NITs with some unknown branches is not worth.
Kindly go for private colleges, universities or try for a year drop.

Yes, every student who has passed 12th and cleared JEE Mains with the least cut-off marks for their category is eligible for JoSAA counselling.

No. Since the top colleges of Pune take students on the basis of MHTCET, you need to mention those marks if you have given it. Moreover, with the above-mentioned marks in JEE Mains, you'll not be able to get a good private college which stands for a position on a national level.

Below is the link to official cutoff marks for GRIET branch-wise. Kindly make the decision accordingly.
http://www.griet.ac.in/eamcet.html

It depends upon your choice. If you can handle the pressure and study the syllabus with the same dedication that you studied for two years before, then you can take it. Moreover, you need to work very hard as you mentioned you have very less marks in Mains this year.
Also, you can take admissions in private universities, but if you have another chance to prove yourself, go for it.

The admissions are purely on the basis of JEE Advanced. There is a fixed date for the application of IIST out of a limited number of seats, a merit list is prepared and the students are allotted the colleges for admission. Your Mains marks are of no use for admissions in it.