ANISH KAPOOR ( 1954 - ) is a British-Indian sculptor specializing in installation art and conceptual art. ANISH KAPOOR s works have been put up for auction numerous times, with realized prices greatly surpassing estimated prices, varying from 9474.64 USD for ECHO in 2003 to a remarkable record 2841000 USD for UNTITLED in 2007 , based on the size and medium of the artwork.