Bharat Sanchar Nigam Ltd : +91 - (612) - 2224093, 9431000023 : Contact : Sanchar Sadan, Budh Marg, Patna Gpo, Patna - 800001
GTL Infrastructure Ltd : +91 - (612) - 2360544, 2363586 , : Contact : M/15, Markandey Complex, Gayatri Mandir Road, Kankarbagh, Patna - 800020
Nokia Siemens Networks India Pvt Ltd : 9031223060 : Contact : Second Floor, Pandey Plaza, Exhibition Road, Patna Gpo, Patna - 800001
Reliance World : +91 - (612) - 30336363, 30337777 , : Contact : Sree Ram Place, East Boring Canal Road, Boring Road, Patna - 800001
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