Arshdeep, 

Yes you can definitely get CSE in YMCA if you are Backward Class Block A of haryana. 

Last year closing rank (AIR) for different branches in YMCA for obc haryana was 

Civil Engineering 104363

Computer Engineering 49975

Electrical Engineering 107991

Electronics and Communication Engineering 74645

Electronics Instrumentation and Control Engineering 150410

Information Technology 53739

Mechanical Engineering 93405

So as you can see the closing rank for COMPUTER ENGINEERING is 49975 so you can get CE there without any problem.

Hope it helps