The operator has introduced an inbuilt tariff on STD calls wherein the call will be charged 75 paise for the first minute and 50 paise per minute thereafter.
Subscribers can recharge with Rs 33 and get talktime of Rs 25 credited into their reserve account.
Maximum new subscribers were added from circle B at 4.4 million. Circle A registered about 3.3 million additions, followed by circle C at 1.9 million and metros at 1.7 million.
The service is available at a monthly recharge of Rs 96.
The company claims it has achieved the landmark in just over five years of the launch of its mobile telephony services.
The new GSM player said they are going to roll out GSM services in Kerala this week, taking the total circles in which it operates to six.
The operator has announced the launch of its GSM service in Mumbai, Gujarat, Kolkata and West Bengal, and Maharashtra and Goa circles.
The services have been launched at a tariff of 1 paisa for every 2 seconds for local calls in Mumbai, Maharashtra and Goa, and MTS to MTS local calls at 1 paisa for every 4 seconds of talk time.
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The operator will offer a tariff of half a paisa per second in Pune and will allow subscribers to connect at one paisa for four seconds, with lifetime validity, within the MTS network.
Vodafone daily and monthly packages are said to help customers save up to 77 per cent on data usage while on international roaming.
The five newly introduced plans for Docomo's prepaid users start at Rs 5 and go up to Rs 95.
Last week, the Authority had announced its recommendations on â€˜spectrum management and licensing frameworkâ€™ and had said that operators such as Airtel, Vodafone, BSNL and MTNL, who are holding more than 6.2 MHz spectrum, are expected to pay an amount
With excess demand for spectrum in only a few circles such as Kolkata, Punjab, Uttar Pradesh and Orissa, the auction is likely to end early next week.
Mumbai is the next most expensive service area after Delhi as its bid stood at Rs 2,998.66 crore.
The operator has introduced services in Andhra Pradesh with a promotional tariff of half a paisa per second.