Question

why is the Taj mahal becoming more like the leaning tower of pisa?

Answer 1

IN what sense?

Answer 2

I am guessing this is in reference to a story last year about the damage being caused by the nearby Yamuna river shrinking. As its water level has lowered, there is concern that the timbers supporting the Taj Mahal would dry out and begin rotting, tilting the towers and collapsing the tomb.

Here are two stories I found that relate to this:
http://blogs.wsj.com/indiarealtime/2011/10/13/could-the-taj-mahal-really-collapse/

http://phys.org/news/2011-10-experts-deny-taj-mahal-collapse.html