I got 279 in Neet UG and I belong to ST category, will I be able to get a seat

an st rank via 85% state quota is on the cards definitely unless you are from states with limited number of medical colleges and high cutoffs..wait for the mopup rounds..of state cousnelling

You would get a seat under state quota in your state, most probably. Please mention your state so that I can provide you cutoff trends so that you get to know about your chances in detail.
Good luck.

AS I see your marks in NEET UG 2018 you have very less chances of get Seat in Deemed Or Private Universities Colleges.
Cutoff for this year for getting any private or deemed Colleges you have to score around 450 under AIQ & 430 under state qouta for Open Category.
You have even less chances to get any seat if you belong to any category under your state.
You can Try for Paid management Seat in top Deemed Universities.
Futher, if you need any assistance you can contact me Personally. 8446739069
Thank You
Piyush Mishra

Chances are less under all Indiaquota and state quota . You may be eligible for private colleges but under government college u have less chances.