Hello,
I want to inform you that with such a low score its difficult for you to get admission into any prestigious college of engineering like nit trichy .
Nit trichy is the most reputed nit so it has high cutoffs for the candidates to get admission.
So either you option for different national institute with your ews rank or take chance in nit trichy during special round might you get a seat in non core branches.
Hope it helps!!!