@RaviPoddar No, this understanding is NOT correct. In mainboard IPOs, single lot or multiple lots are weighed equally through lottery in an oversubscribed issue. If you apply 67 lots and other person had applied just 14, it is also possible that one who applied 14 gets allotment of 14 lots and you too gets 14 lots if lucky or maybe nothing if unlucky.
In case of bHNI, even though application amount is Rs 10L, shares worth Rs 2L (similar to sHNI) gets allotted if selected in lottery in an oversubscribed issue.
There is no confirmed or guaranteed allotment here.