JEE Main

So, a rank under 10k to15k can fetch you a top NITs. Accordingly your score in JEE Mains Paper 1 should be more than 180+ (200+ to be on the safer side) at least. For lower ranked NITs 150+ is a must.

Not more than 50k for general category and that too you will get in last few rounds. For NITs, it is around 25k.

What is your exact question? What kind of guidance do you need? Please be clear.

The following factors will be reviewed by the concerned authorities while preparing the JEE Main cutoff for NIT, Hamirpur. All of the listed factors are related to the JEE Main examination.
1. Cutoff trends of previous years.
2. Total number of candidates for the course.
3. Performance of the candidates in the examination.
4. Difficulty level of the exam.
One needs to take the JEE Mains exam and secure at least 75% marks (65% for SC/ST) in class 12th exam or be in the top 20 percentile in class 12th exam conducted by the respective board. Admissions are on the basis of rank in JEE Mains.

No, you have to give JEE (paper-2) to get admitted in SPA.

Do engineering in the best college of your city and after 4 years, prepare for GATE.

No, JEE exam is strictly considered for the admission to B. Tech or Architectural courses. M.Sc and PhD courses are available at the college but do not take admission on the JEE basis.

The various exams are:
UPSEE
WBJEEBITSATVITEEE
SRMJEE.

Yes, you can get it through writing other entrance exam and doing well in them. Such as BITSAT, VITEEE, MHCET, UPSEE etc.

If you don't have enough time left, revise your already prepared topics. Make them strong if you do well in those, you can get at least decent marks.