People with more than four years of experience were given one of the best placements at IIM Lucknow. You should remember that your work, experience, and area of interest are always factors in your placements. Indeed, work experience, whether relevant or irrelevant, is always a plus.
The reasons for this are straightforward:
You have an advantage over freshmen on campus, but you must also make good use of your campus time. Yes, jobs in sales, FMCG, and so on are unlikely to shortlist you. You will almost certainly receive shortlists from consulting firms, marketing profiles, and finance profiles.