Dear aspirant ,

Yes you can get admission at IIM lucknow for MBA if your CAT score is good enough . You have to get maximum  99 percentile in CAT to get a call from IIM lucknow .

Their selection is mostly based on your academic performance in 10th and 12th std and in  your bachleor's  degree plus your CAT score plus your work experience plus your writing ability test and personal interview . They will calculate your overall score and if you are eligible then you will get a call from the officials .

Here is the link for more detailed information regarding the admission process : http://www.iiml.ac.in/sites/default/files/2018-08/IIML-AdmissionPolicy2019-21_CAT2018.pdf

Open the above link and read the information regarding the admissions.

Hope it will help you .