Hello Mj,

The answer to this question depends on your B-School goal. As you mentioned top b-school , it can either be IIMs or next level good and reputed MBA institutes. If you are aiming only for IIMs then you will have to work really hard and be extremely focused in your preparation, because very few people crack within one or two attempts. Hence if you are confident with your preparation strategies , then you can take up part time work and divide equal time for both comfortably , note that you should be disciplined enough to manage both.  Moreover, if you are planning to take up MBA from IIMs then you do not need to do LLB or M.Com as MBA has got wider scope especially when you do it from a premium institution. Even if you are going to seek CAT coaching,  part time job will not be  a hindrance and once you join MBA you can leave or even continue if your employer is supportive.

You may visit the below link to know about CAT preparation :

https://bschool.careers360.com/articles/how-prepare-for-cat

Now another scenario is when , your CAT attempts do not fetch you IIMs or other premium institutes, in that case an LLB degree would be a good back up as it has wider job options compared to MCom.Note that you can do MBA from top institutes like Narsee Monjee Institute of Management Studies or Symbiosis Centre for Distance Learning in distance mode too if your original plan does not workout. There are E-MBA programmes too which are of high value exclusively for working professionals. More importantly consider your interests and aptitude too towards MBA and Law before taking up.

Therefore, your final decision depends on your dedication and preparation level, how much you can manage at a time , what your future career goals are and your interest towards the subject.

Link about LLB colleges in India:

https://law.careers360.com/colleges/list-of-llb-colleges-in-india

All the best.