> One of them is called Padhuka Sahasram, was written in less than a day in response to a challenge and contains 1008 verses in 32 chapters.

If he spent 24 hours non-stop writing those verses, he's have to write 7 verses every 10 minutes on the average. If it is really a "less than a day" 8 hours, he'd have to write nearly 3 verses every minute. In summary, this sounds like something that will need some serious substantiation to believe.