HELLO AKSHAY
Congartulations for your result and you have very decent chance of qualifying JEE mains.
It is very difficult to predict the actual rank since it depends on various factors.
Now your expected rank comes out to be  72492.The expected rank might change depedning on the no of candidates appearing the April session.

Since the official cutoofs are yet to be announced by coleges let us analyse your chances looking into the previous year cutoofs.
NIt trichy is one of the top 5 NITs and getting admisiion into this college requires are very high percentile . There are two types of cutoofs followed by nITs one is hOME state quota HS and Os other state quoat

NIT TRICHY
2019(ews categorey)

HS    Civil Engineering    12660  -  16766

OS    Civil Engineering    1176    -  1379

As you can see it seems very difficult for to get into this admission with the present percentile. But do worry since you have an April attempt left as you can see for the os quota yor rasnk should be under 1500 i,e is nothing but you should score 99+ percentile and mor importantly you have a ADVANCe to go which can lead directly you into IITs.

BUT if you want to know hcih coolege you might get with your present percentile then you can use our college predictor which has following features;

JEE Main 2020 College Predictor

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Akshaya, you haven't mentioned your home State. This is important because the cut offs are different for Home State Candidates and other State Candidates. The previous year cut offs for CE in NIT Trichy for EWS Category for female Candidates has been as follows:

Home State: 32599

Other State: 3721

Now cut offs change every  year depending on various factors. Meanwhile, Your rank can be predicted by using the formula, (100-your total percentile)*869010/100. In your case, your approximate rank would be 72562. Let's say the number of candidates for April exam increased to 12,00,000 then your final rank shall be (100 - your total score) X 12,00,000/100.

So your percentile might be less for CE in NIT Trichy. Though you qualify for JEE Advanced, you need to appear for April session to improve your percentile.

Now to predict colleges, please use our college predictor:

Dear Aspirant

According to your percentile Mentinoned we can easily calculate your rank .The formula to calculate rank is No of students appeared in exam/100 *(100- Nta score)..So no of can appeared were 869010 .

So your rank will be 72492

According to cutoff trend from 2019 which is mentioned below you can predict the chances -

Closing ranks

Civil engineering

Home state -20466

Other state -1045

If you want to know your college based on percentile and rank then you can visit the link mentioned it

https://engineering.careers360.com/jee-main-college-predictor

Thanks

All the very best