Vacant seats for the 3-year Computer Engineering (lateral entry) program at LPU are usually filled during the manual or spot counselling rounds if seats remain after regular counselling. I don’t have information about other universities, but at LPU, seat availability is updated frequently, and admissions are offered on a first-come, first-serve basis based on eligibility. Students can visit the admission office or apply through the portal to check real-time vacant seats and complete the process quickly.