JEE Main Scores

Yes, there are many examples of this, the main thing is that the Mains paper is solved by smart work rather than hard work.

At this score, it would be somewhat difficult to get IIITH as this institute being research center gets filled last upto 230 marks so getting this would be difficult for you but yes, if you are from SC category, it will be beneficial for you.

It depends on from which state are you from and 57 marks JEE can only be beneficial for you if you are from SC category.

Hello,
143 is a fair score and you can take up computers from other colleges than IITs. You can also opt for other private colleges for a better score and better choice for the degree.

Clarify your category first. If you are from general category then it is a little bit tough to get a government college. Other than general category, there is a possibility of getting a government college.

I cannot tell you about your rank, but I can definitely say to you that you will be getting NIT or IIIT. So, don't worry about the rank. However, if you want to know about the rank, you can use Shiksha rank predictor too. Try hard of JEE Advanced so that you might get IIT even.
Best of luck.

If you are from general category then you will get nothing with this score, however, if you are of another category then you might be eligible for the Advanced exam. Official answer key will be released soon.
Best of luck.

Well, this year most of the people are scoring between 80-100. So, with 70 marks, you can expect around 80k-90k.

It depends on which college you are applying to. MHCET will give you admissions only in state of Maharashtra, whereas JEE Mains and JEE Advanced will help you get admissions in IITs, NITs, IIITs and GFTs i.e. Government Funded Institutes

Depends on your category. If you are from general category, you might not get any NIT with these marks. Prepare for Advance, and do well to create better chances for you.