If I have 6 years gap after B.Tech from UPTU but I score 99% percentile in CAT 2019. Will I get admission in IIM Lucknow?

Dear Himanshu, you haven't mentioned your Category. Neverthless, IIM Lucknow has a 3 stage Selection process; Written Ability Test, Personal Interview and Final Selection. Candidates will be shortlisted based on CAT score, Academic performance and other Criteria. You havent mentioned if you have been working for the past 6 years because PGP-SM course prefers a minimum of 24 months as  working experience.  In 2018, the percentile cut offs have been as follows:
QA                DLR            VARC        Overall
General               85                  85                 85                90
NC-OBC              77                  77                 77                82
SC                        55                  55                 55                70
ST                        50                  50                  50               65
PwD                    50                  50                  50                65

For being shortlisted for Written Ability Test and Personal Interview, the following chart is followed on a composite score of 100:
Scaled CAT Score:                                   60
12th marks:                                              10
Graduation:                                              10
Work Experience:                                   10
Diversity Factor for Academics:           5
Diversiry Factor for Gender:                  5

Method of scoring can be found on the official website. Those candidates who are eligible after these 2 roumds are called for Written Ability and Personal Interview Test. The final score is calculated based on this scale:

• Common Admission Test:  30
• Academic Performance (12th  + Graduation): 5+5
• Diversity Factor (DF academics +DF gender): 5
• Work Experience: 5
• Writing Ability Test: 10
• Personal Interview: 40
• Final Score: 100

The minimum marks that you need to score in Personal Interview are 12 out of 40. Considering all this, if you score 99% in CAT, you will be eligible for further rounds. And you should score good in every round of interview to really get into IIM Lucknow.

Hi Himanshu,
First of all i would like to tell you that your score in 10th 12th and graduation are just average and not good enough to get you a profile based call. And Secondly i would like to address your question. See Himanshu, what matter is not the gap, but how wisely you are able to justify the gap in your interview while selection process.. In case you had a work experience to justify the gap it would have worked wonders.. But anyways I will suggest you to prepare well for the interview and wat rounds, so that you are able to show your potential once you are called for the interview.
All the best..