Agra : The 355th Urs (death anniversary) of Mughal emperor Shah Jahan is being observed at the greatest of all monuments he built -- the Taj Mahal. Tens of thousands of devotees thronged the 17th century marvel especially for the three-day event that began Friday. During this period, people pay homage at the graves of Shah Jahan and his wife Mumtaz, in whose memory the Taj Mahal was built. The graves otherwise are not open for public viewing. Security personnel expect a big rush until Sunday.... full story