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Subscriber base as on December 31, 2014: 150,536,058
Won 3G spectrum for Delhi metro and 4G LTE spectrum for 8 service areas
6th largest mobile operator in terms of number of subscribers in single country operations: GSMA Intelligence Report
Raised Rs. 3,000 Crores through Qualified Institutions Placement
Subscriber base as on December 31, 2013: 128,685,043
Became the 3rd largest mobile operator in India in subscriber terms as well
Received a USD 1 million Grant from US Trade and Development Agency for a Green Telecom Project
Subscriber base as on December 31, 2012: 113,946,827
Won back spectrum for 7 circles for which licenses were quashed by the Supreme Court.
Became a $4 Billion Company in revenue
Established a robust network of over 100,000 cell sites across the country
Subscriber base as on December 31, 2011: 106,380,111
First operator to announce the launch of Mobile Number Portability, have been the Top gainer ever since the service was launched.
Launched 3G in 10 circles – Andhra Pradesh, Gujarat, Haryana, Himachal Pradesh, Jammu & Kashmir, Kerala, Madhya Pradesh and Chhattisgarh, Maharashtra and Goa, Uttar Pradesh (East), Uttar Pradesh (West).
Entered the devices category with the launch of affordable 3G smartphones.
Only operator in the country to have ISO 9001:2008 certification for its service delivery platform for all 22 service areas and the corporate office
Subscriber base as on December 31, 2010: 81,778,655
Idea won 3G Spectrum in 11 service areas in India. These markets account for over 81% of the company’s total revenue
Idea crossed usage of ‘One Billion’ Minutes per day on the network, propelling it amongst the Top 10 country operators in the world
Idea emerged as the 3rd largest mobile operator in India, in revenue terms.
Subscriber base as on December 31, 2009: 57,611,872
Idea becomes a pan-India operator
Emerging Company of the Year - fastest growing mobile operator in the world’s fastest growing telecom market
Becomes pan-India operator in 2009
Subscriber base as on December 31, 2008: 40,016,153
Idea acquired 9 licences for Punjab, Karnataka, Tamil Nadu & Chennai, West Bengal, Orissa, Kolkata, Assam, North East and Jammu & Kashmir
Acquired Spice Communications with the operating circles of Punjab and Karnataka
Launched services in Mumbai metro in the largest single metro city launch, ever
Launched services in Bihar
Subscriber base as on December 31, 2007: 21,054,027
Won an award for the "CARE" service in the "Best Billing or Customer Care Solution" at the GSM Association Awards in Barcelona, Spain
Initial Public Offering aggregating to Rs. 28,187 million and Listing of Equity Shares on the Bombay Stock Exchange and the National Stock Exchange
Merger of seven subsidiaries with Idea Cellular Limited
Reached the twenty million subscriber mark
Subscriber base as on December 31, 2006: 12,442,450
Became part of the Aditya Birla Group subsequent to the TATA Group transferring its entire shareholding in the Company to the Aditya Birla Group
Acquired Escorts Telecommunications Limited (subsequently renamed as Idea Telecommunications Limited)
Restructuring of debt
Launch of the New Circles
Reached the 10 million subscriber mark
Received Letter of Intent from the DoT for a new UAS License for the Mumbai Circle.
Received Letter of Intent from the DoT for a new UAS License for the Bihar Circle through Aditya Birla Telecom Limited. ABNL, the parent of Aditya Birla Telecom Limited, pursuant to a letter dated November 22, 2006, agreed to transfer its entire shareholding in Aditya Birla Telecom Limited to the Company for the consideration of Rs. 100 million.
Subscriber base as on December 31, 2005: 6,473,962
Reached the five million subscriber mark
Turned Profit Positive
Won an Award for the "Bill Flash" service at GSM Association Awards in Barcelona, Spain
Sponsored the International Indian Film Academy Awards
Completed debt restructuring for the then existing debt facilities and additional funding for the Delhi Circle.
Acquired Escotel Mobile Communications Limited (subsequently renamed as
Idea Mobile Communications Limited)
Reached the four million subscriber mark
First operator in India to commercially launch EDGE services 2005
Acquired Escotel, incumbent cellular service provider in Haryana, UP(W) & Kerala and new licensee in HP
Reached the two million subscriber mark
Changed name to Idea Cellular Limited and launched "Idea" brand name
Commenced commercial operations in Delhi Circle
Reached the one million subscriber mark
Brand IDEA launched Delhi operations commence (Nov)
Acquired RPG Cellular Limited and consequently the license for the Madhya Pradesh (including Chattisgarh) Circle
Changed name to Birla Tata AT&T Limited
Obtained license for providing GSM-based services in the Delhi Circle following the fourth operator GSM license bidding process
Acquired RPG Cellcom, service provider in Madhya Pradesh (Feb) Awarded
Merged with Tata Cellular Limited, thereby acquiring original license for the Andhra Pradesh Circle
Migrated to revenues share license fee regime under New Telecommunications Policy ("NTP")
Commenced operations in the Gujarat and Maharashtra Circles
MoU for merger between Birla AT&T and Tata Cellular Limited Andhra Pradesh signed (Jan)
Changed name to Birla AT&T Communications Limited following joint venture between Grasim Industries and AT&T Corporation
Incorporated as Birla Communications Limited
Obtained licenses for providing GSM-based services in the Gujarat and
Maharashtra Circles following the original GSM license bidding process.