Nalco, will tap the overseas market to raise US$ 250-million by August-end for its capacity expansion plan. About 17 banks and merchant bankers including SBI, ICICI and Citi have responded to the expression of interest invited by Nalco to raise over US$ 250-million through the External Commercial Borrowings (ECB) route, a company official said on Sunday. 
    Nalco is undertaking a major expansion, including ramping up of its alumina capacity. ABN Amro, HSBC Bank, Standard Chartered Bank and UTI are among the bidders.