Thanks mam for your reply and is it that almost every student who appear in IBSAT Online test is moved for further selection process or does filteration occurs in Online Test stage ?

HARSH SHANKER Harsh, there is obvious a filtration done at the online stage. Data for this year has not been released officially but in 2018, around 25,000 candidates had appeared for IBSAT 2018 and 12,000 candidates qualified for the selection process. That is around 48% of the total applicants.
You need not worry about the number of shortlists. You focus on the preparation for the next rounds. All the best.