Dear Aspirant, 

The cut off ranks  of ECE in GMRIT for various categories is as follows:

OC : 8479

SC : 138746

ST : 101575

BC-A : 41779

BC-B : 39070

BC-C : 15688

BC-D : 15171

BC-E : 81425

The closing ranks usually depends on the intake and vacancies as the counselling commences. Hence specifiying a particular rank isn't possible. 

Hope this helps. 

Good luck.