Hi

With an 11,888 rank in the SC Category, the chances of getting an NIT is very slim but there's no harm in trying for your home state NIT and the North-East NITs. So fill all the options in the counselling. 

Also do check this JEE Main 2019 College Predictor link to get a better idea which colleges you can get according to your profile: https://engineering.careers360.com/jee-main-college-predictor?utm_source=C360&utm_medium=qna&utm_campaign=jee-

main-college-predictor.

All the best.

Hope this helps.

Cheers!