Wi-Fi Hotspots in Chennai Airport

Last week I went to Madras(Chennai) Airport to pick my brother. As I haven't accessed any Wi-Fi connection in Madras Airport, I took my new Laptop, to check out the Wi-Fi Hotspots.  BSNL, KingFisher & TATA-Indicom are the three networks available inside the Airport. Though I expected Sifys' Sify Wi-zone, but it was not there.

I tried connecting