Purab, who is gearing up for his film "Rock On 2", says it is "most creative thing I've done surely".
"It's the most beautiful experience in the world. The most creative thing I've done surely. Both mother and baby are doing great and in super health. Lucy is amazing and a super woman going through all that labour," Purab said on being contacted.
The newborn was delivered on Tuesday evening in London.
Meanwhile, the actor will also be seen in Akshay Kumar-starrer "Airlift".