The Tata-Changi Airport consortium has bid for development of three airports in Karnataka for which the state government had invited expressions of interest.The airports are Shimoga, Gulbarga and Bijapur, N G Tim Peng, VP, Changi Airports International India, told reporters on the sidelines of an aviation conference here today. The Karnataka government had called for expressions of interest for the development of the three airports last month.The consortium is also bidding for upcoming airports in Navi Mumbai and Greater Noida near New Delhi, Peng said, adding that the consortium will also bid for other 35 non-metro airports whenever the bids are invited.Tata Real Estate and Changi Airports International, in which the Tata Group holds 51% stake and Singapore's Changi the remaining 49%, will bid for the three airports.After the redevelopment of major airports across the country was taken up by the government, many consortia have jumped into the fray for the profitable ventures. Two cases in point are Delhi International Airport (DIAL), which is a joint venture between GMR group, state-run Airports Authority of India (AAI), Germany's Fraport AG, the India Development Fund and Malaysia Airports Holdings and Mumbai International Airport (MIAL), which is a JV between GVK, AAI and ACSA (Airports Company of South Africa) and the Bid Vest Group.