According to the Tender website the Time allowed: 4 Months. We will see how fast this is moved.
1. Sealed item rates tenders are invited by senior Manager Engg (Civil), Madurai Airport, Madurai on behalf of chairman, AAI from specialized agencies for SH: 1 & 2 / registered contractors of appropriate class of CPWD/MES/P&T/State PWD/PSUs for the works of “Construction of New Integrated Terminal Building at Madurai Airport. SH: [1] Providing Sewage Treatment Plant (including Civil and Electrical Works) at an estimated cost of Rs.64.74 Lacs, Time allowed: 4 Months,[2] Providing Check-in-Counters & Immigration Counters at an estimated cost of Rs.21.28 Lacs; Time allowed: 2 Months, [3] Providing Rain Water Harvesting Pits at an estimated cost of Rs.7.39 Lacs, Time allowed: 2 Months. Tender will be issued from 21.01.2010 to 22.01.2010 and shall be received till 1500 hours on 29.01.2010 and opened on the same day at 1530 hours. [The Scope of work includes Design and Construction of Sewage Treatment Plant 200m3 Capacity (Including Civil & Electrical Works) for S.No:1, Fabrication and Erection of Check-in-counters and Immigration Counters for S.No:2; Providing Rain Water Harvesting Pits for S.No:3].
Also noted that the current runway expansion can take some time. The current runway can handle Airbus-320 and Boeing-737. Airbus-320 is used in Tiger Airways and Airasia. A320-200 has a range of about 2,900 nautical miles. Distance from the Singapore to Madurai is 2990 kilometers or 1858 miles or 1615 nautical miles. If the Singapore to chennai distance is 2891 kilometers or 1797 miles or 1561 nautical miles can be covered in 4hrs, then it would mean about the same flying time to madurai.