Auction of telecom spectrum in 1800MHz and 900MHz bands will now be held on 3rd February instead of 23rd January next year. The Department of Telecommunications, DoT, in a press release today said the revised dates and details of Notice Inviting Applications are available on the DoT website : www.dot.gov.in. About 403 megahertz of 2G spectrum in the 1800MHz band and about 45MHz of spectrum in the premium 900MHz band are being put up for auction.The government is expecting a minimum of 11,300 crores rupees from the upcoming spectrum auction. It has set a revenue target of 40,874 crore rupees this fiscal year from spectrum, including auction amount, one-time spectrum charge and annual regular license fee.