Surprise Chicken Biryani

My husband made Chicken Biryani today and me guess the surprise, which I failed to. He followed Sanjay Thumma's recipe
Why did he make it?
His friend said its easy.
Anything unexpected?
While making, he wasnt sure, if the masala was enough.
End result.
The family liked it and saved some for neighbors too.

What can go wrong with Biryani?

• The spice paste might be disproportionate to rice
• The rice could be soggy from disproportionate water
• Chicken might be undercooked (ah, the embarrassment when served to guests) 

And none of that happened with biryani at hand.

Fun biryani's
Mirchi-ka-salan biryani
Chole Biryani