Why is the actual deadline students should plan around earlier than 15 September, even though that is the official cutoff?

Because registration is a seat reservation at a physical test centre with limited capacity per city, not a formality you complete once you have decided to apply. The real deadline to plan around is closer to the first week of September, not 15 September itself.

Why metro seats disappear early

Test centre seats in high-demand cities like Bengaluru, Mumbai, New Delhi, and Chennai have historically filled up in the final week of similar aptitude test rollouts. If your first-choice centre shows no availability by the time you register, the system will only offer you the remaining open centres.

What running late can mean for you

Being offered only distant centres may mean travelling outside your home city and factoring in a day of travel plus an overnight stay before the test date. That is an avoidable cost and stress if you book early.

My Advice

Based on similar first-time rollouts of aptitude tests, register in the first two weeks after the window opens if a metro city is your preferred centre, not in the final week before 15 September. Treating the official deadline as your personal deadline is the single most common planning mistake we see.