being a tamilnadu resident, how much should I score in JEE mains 2021 out of 300 to get into NIT Trichy from OBC creamy layer

Hi

If you are obc creamy layer then you will be treated as general as there's reservation only for obc ncl.

This is a bit difficult to predict the marks required in JEE mains to get a seat in NIT trichy as cut off rank keeps changing every year depending upon various factors like number of students that appeared in the exam, kind of marks obtained by them , toughness level of the jee main examination , number of seats available for the branch you want etc.

I am considering that you are asking about computer science

When we go through previous year trends, then

In round 6 of josaa counselling 2020 , for general or open category to get computer science engineering in National Institute of Technology, trichy ,under home state quota 4728 was closing rank

You can check the same at
https://josaa.nic.in/Result/Result/currentorcr.aspx

Rank of 4728 is around 175 marks as per our article at
https://engineering.careers360.com/articles/jee-main-marks-vs-percentile

So, to be safer side try to get at least around 180 marks in your jee main 2021

Now,
limited time is left for jee mains 2021 , so focus on your preparation, to prepare well your jee examination, go through chapters first and your focus should be on grasping concepts , practising questions and then revising them, go through mock test paper sample papers and previous year question papers as it will let you know your preparation level and and weak areas so that you can work on them and perform well in your examination.

If you have any other doubt then you can always reach us to clear them :) we are always available to help you out and guide you

Thankyou