@newgen consultancySir, yes that is absolutely a stunner from QIBs amid the glut of good IPOs.
Just too give you some idea of the record of Highest QIB subscription till date.
I am not fully sure but probably it was in Coal India IPO in 2010. QIBs subscribed 24.70. Shares reserved for QIBs was 284,236,398, shares was allotted for ₹ 245. So QIBs blocked a whopping ₹ 1720056562500, which comes close to ₹ 172005.65624 Crore.
Also please see this aspect too, ₹ 100 in 2010 became ₹ 231 in 2023, so based on above the ₹ 172005.65624 Crore in 2010 now became ₹ 397333.0659144 Crore (i.e. almost ₹ 4 Lakh Crore).