Yes you might get seat as determining cutoff is difficult but As of last years what I know is about the cutoff of the branches at lnmiit were-

Computer science and engineering -94(approx.)

Computer and communication engineering-95(approx.)

Electronics and communication engineering-88-93(approx.)

Mechanical engineering-74(approx.)

Cse (dual degree ) -102(approx.)

Ece (dual degree)-74(approx.)

So this year on about 92 percentile u have chances to get ece at lnmiit .

The cutoff would be around 88-93 percentile for ece.