BSNL all USSD codes to check balance, offer, plan, alert. BSNL i.e Bharat Sanchar Nigam Limited is an Indian telecom state owned company, headquartered in New Delhi, which offers voice and data services ranging from prepaid and postpaid plans, Broadband wireless Service, 2G, 3G and Value added Services(VAS).  This post will give you all USSD codes … Continue reading “2018 BSNL all USSD codes to check balance, offer, plan, alert”