Few corrections I would like to make.
Fixed Hires is the amount given by the Exhibitor to Producer in one go for full run in advance no matter how much a film earn. Reason behind this is that these small centres have a very limited collection so having them reported it daily will be a messy stuff.
E.g. Khaidi No 150 had around ₹23.5cr Share on Day 1, out of this ₹10cr approx was fixed Hires and only ₹13.5cr was actual or worth share from non hired centres. These hired centres would have collected around 20-35% of Fixed Hires on its Day 1 while rest will be recovered in coming days. So actual share of Khaidi No 150 was around ₹16cr in AP/TG.
Baahubali The Beginning had ₹4cr Hires while ₹18cr Worth, so actually no film hasn't beat it yet in real collection. It's just on paper.
Apart from that there will be Benefit Shows too. Say like Paid Previews we have but not on Thursday they start from early morning Friday. Main motive is to cater to demand. Benefit shows could contribute to as much as 10-25% of full day collection depending on how many Benefit Shows are planned. So next time you compare a Bolly film with South Indian think of adding Paid Previews to Day 1 or if just assumption add one more show collection throughout.
This is why collection of films drop to low levels on Day 2 despite being Housefull.
Say Khaidi No 150 had ₹13-14cr worth day 1 in normal circumstances, day 2 was ₹5.75cr + ₹1.25-1.5cr Approx (Hires recovered on Day 2), around ₹7cr with other film releasing is absolutely normal.