India, May 30 -- In March 2005, as per the Telecom Regulatory Authority of India (TRAI), India's mobile (wireless) subscriber base was 52.22 million. In March 2006, that increased to 90.22 million. By March 2007, it touched 165.99 million, 261.08 million by March 2008, and it grew to 391.76 million by March 2009. The growth trajectory was relentless - 584.32 million in 2010, 811.59 million in 2011, and 919.17 million in 2012. The trend continued year on year, with India's mobile subscriber base crossing a significant milestone of 1 billion (1,009.32 million) connections in late 2015.

India registered its most significant surge in new mobile connections during the financial year 2010-2011 (April 1, 2010, to March 31, 2011). During this pe...