Conversation so far:
When did Pankaj Advani begin playing billiards?
In the year 2000 Pankaj Advani won his first Indian Junior Billiards Championship title and then went on to win it again in 2001 and 2003.
How long did Pankaj Advani play billiards?
Did Pankaj Advani win any billiards tournaments?
Pankaj Advani won the IBSF World Billiards Championship in 2005 at Qawra, Malt.
How old was Pankaj Advani when he won the IBSF World Billiards Championship in 2005?
In 2005, Pankaj Advani was 20.

Question: What if any challenges did he face during his career?
Self-contained rewrite: What if any challenges did Pankaj Advani face during his billiards career?