Anil Ambani's Reliance Infrastructure Ltd has slashed its standalone debt by 87 per cent to Rs 475 crore after it cleared outstanding dues of Life Insurance Corporation of India, ICICI Bank and other lenders, the firm said on Wednesday.In stock exchange filings and press statements, Reliance Infrastructure said its standalone external debt has reduced from Rs 3,831 crore to Rs 475 crore."Consequently, the net worth of the company will stand at Rs 9,041 crore."