Can I get CSE or IT in LNCT Bhopal with a rank of 124608 in Mains?

Wait for a bit for the later rounds of counseling, then you can for sure secure a seat in the department of CSE. However, if you wish to acquire admission during the first round of counseling then you would surely be offered IT and not CSE. 

This happened to one of my friends. He waited for a few rounds and was able to secure admission later. I would advise you to opt for CSE and IT as your preferences in the first and second rounds of counseling when you are required to fill out your choices for the admission procedure. 

It is suggested you select CSE in the first place and IT in the second place during filling your choice, and you should do this in the second round too. Through this way, you would securely get admission in IT if not CSE.