The public sector firm has launched STVs in the range for Rs 23 to Rs 41 for prepaid customers whereas postpaid users have to pay a fixed monthly charge of Rs 20 to Rs 40 to avail the cheaper rates.
The company has divided the countries into four groups.
"BSNL is providing its customers the cheapest international call rates. It has launched STVs, which are offering ISD calls rates similar to the normal calls," the company said in a statement.
With a STV of Rs 41, prepaid customers can call USA, Canada and Singapore for Rs 1.49 per minute whereas the normal rate is Rs 6
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