Hey aspirant,

NTA adopts a unique normalization formula to calculate ranks or marks. Normalization is used to equalize the difficulty level of the exams which is conducted in multiple sessions. This is often confusing for students and that is why it is suggested to use Careers360's JEE Main Rank Predictor tool. Since you aren't willing to use it, I can only give a rough approximation of your rank, which may vary significantly with your actual rank. With a percentile of 93, you may have scored approximately 80-90 marks and your rank maybe around 48000-60000.

When it comes to admission possibilities at NITs or IITs, it would be difficult to say exactly whether you may or may not be able to get admission.

For that, I would suggest you to check out Careers360's JEE Main College Predictor 2020. You can know your admission chances based on detailed criteria like home state, caste, gender etc. You will also get a personalised JEE Main report delivered on mail with top predicted colleges in JoSAA and state counselling for admission at premium institutes like NITs, IITs and other institutes which accept JEE Main score across many states. This would be really helpful for you.

In case you want to check it out, here's the link for the predictor:

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer