The system of Chennai Telephone was first introduced in the then Madras city in the year 1881. Today, BSNL Chennai is the major telephone service provider of the city which has exchange boards in all places of South India.
Chennai Telephone covers such areas of South as North West, Central, South West, North East, West, North Peripheral and South East. Bharat Sanchar Nigam Limited or BSNL is the official telephone exchange which has its offices in Chennai city. BSNL is the major helpline service in Chennai.
Chennai Help Line and important telephone number
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