Hi

With  98.42 percentile

• your rank will be around 16163 - 18170  as per our rank predictor at

  JEE Main Rank Predictor 2021 - Predict your JEE Main ...

  JEE Main Rank Predictor - Know your expected IIT JEE Main 2021 Rank by ...

Your ews rank will be around 2000- 2300.

By south Indian NITs, I am guessing you mean top Nits in south like NIT trichy, Surathkal etc.

You have chances in them but not for ECE.

With your rank , you have chances in following top south nits which are listed below along with their closing rank in 6th round of josaa counselling 2020, for ews category for gender neutral for other state -

• NIT Calicut, mechanical engineering:-2955 ews rank

• NIT Surathkal, civil engineering :- 3337 ews rank

• NIT Trichy, civil engineering :-2808 ews rank

You have chances for ECE in NITS like

• National Institute of Technology Goa:-2902 EWS rank

• National Institute of Technology Raipur:-2831 ews rank

• NIT Jamshedpur:- 2439 ews rank

And a few more

You can check the closing ranks  at official website of josaa by going through the link given below

https://josaa.nic.in/Result/Result/currentorcr.aspx

Above prediction has been made  considering  past year cut off data but  closing rank for colleges varies every year depending upon many factors like jee main question paper difficulty, number of students writing the exam etc so

To have a personalised report on your chances of getting a college you can go through our college predictor, it will give you complete list of colleges which you can get on the basis of the category you belong to,  your home state, your gender etc, the link for  jee main college predictor is provided below

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

Thankyou