Hello Kamal

If you have got 55 marks in comedk then your rank should be around 30000. It may be increased upto 31000 if paper was easy or it may be decreased upto 29000. So rank also depends on level of difficulty of paper. 

This expected rank is based on previous year cutoff. 

I hope this will help you

HHello kamal 

With 55 marks your expected rank may range from 35500-23200 .

For full details click on link 

https://www.google.com/amp/s/engineering.careers360.com/articles/comedk-uget-cutoff/amp

And you can also use careee360 comdk predictor to predict the college you can get. 

Link is -  https://engineering.careers360.com/comedk-college-predictor