BSNL Launches 4G Mobile Services in Thiruvallur District, Tamil Nadu in the areas of Nochili,Kolathur,Pallipet, Thiruvellavoyal,Ponneri,Athipedu, Annamalaicheri,Thirupalaivanam, Elavembedu,Minjur,LNT Shipyard Kattupalli,Veeranathur,Srikalikapuram,Vanganoor,RK Pet on July 5, 2024.