Hello aspirant

Being SC pwd candidate , with tnea score of 90 you must get good college . Which college you will get depends upon cut off of the college . Cut of depends upon number of candidates appeared and qualified in exam, difficulty level of exam, previous year's cut off and availability of seats etc.

2019 cut off FOR SC CATEGORY ( VARIOUS VOLLEGES)

ANNA University ,civil engineering - 183

Dr. Ramarajan sakunthala engineering college, CSE - 98.5

Sri Jayaram Institute of Engineering, agricultural engineering, - 82.5

Now this was cut off for SC Category, cut off for SC pwd must be still less hence depending upon above observation, you have chances of getting a good College

For College prediction following link will help you