NEW DELHI, April 29 ? As many as 75 of the total 86 operational airports in the country were consistently making losses with Guwahati topping the list incurring losses of over Rs 25 crore in 2000-01, the Lok Sabha was informed today, reports PTI. Civil Aviation Minister Syed Shahnawaz Hussain said in a written reply that Trivandrum (Rs.9.96 crore), Nagpur (Rs. 9.85 crore) and Lucknow (Rs. 9.21 crore) are the among major loss-making airports.