Dear student,

As you are secured 18131 rank from EWS category in JEE mains then it is quite impossible for you to get any NIT. Also you can not get NIT Warangal with this much rank.
Here are the last year cutoff closing ranks for computer science engineering, electronics and communication engineering and electronics and electrical engineering branches for ews category candidates in nit warangal.

COMPUTER SCIENCE AND ENGINEERING :-

MALE CANDIDATES -
Home state candidates - 400
Andhra pradesh candidates - 855
Other state candidates - 272

FEMALE CANDIDATES -
Home state candidates - 765
Other state candidates - 450


ELECTRONICS AND COMMUNICATION ENGINEERING :-

MALE CANDIDATES -
Home state candidates - 856
Andhra pradesh candidates - 688
Other state candidates - 684

FEMALE CANDIDATES -
Home state candidates - 1150
Other state candidates - 1020


ELECTRICAL AND ELECTRONICS ENGINEERING -

MALE CANDIDATES -
Home state candidates - 1224
Andhra pradesh candidates - 979
Other state candidates - 952

FEMALE CANDIDATES -
Home state candidates - 1856
Other state candidates - 151

So as you can see there is no chance that you can get cse /eee / ece in NIT Warangal with this much EWS category rank.
Not just NIT Warangal, you can't get any other nits too.

So better check out our JEE mains college predictor tool to get an appropriate idea of the colleges that you can get on basis of your JEE mains rank :-
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer