Trichy has joined selected cities in TN which has 3G Mobile and data services through BSNL. Although we are getting this service after Coimbatore, Nagercoil, Conoor, Erode, Tirupur, Namakkal, Tirunelveli, Perambalur, Ariyalur, Virudhunagar, Thanjavur,Tiruvarur, Tuticorin, Ooty, Pondicherry, Kodaikanal, Kanyakumari, and Sivaganga in Tamilnadu, it is better late than never.
Those who wants to know about 3G can get more information from Wikipedia.
BSNL 3G Services will provide high quality multimedia features like video calling, high speed Internet browsing up to 3.6 Mbps through Mobile phone/Data Cards (modem) and also subscribers can enjoy Live Mobile TV & VoIP services on 3G Compatible mobile phone.
Happy Surfing !!!!