Reliance  Jio Infocomm Limited   ( Jio)  is an Indian  mobile network operator . Owned by  Reliance Industries  and headquartered in  Navi Mumbai ,  Maharashtra , it operates a national  LTE  network with coverage across all 22  telecom circles . Jio does not offer  2G  or  3G  service, and instead utilizes  voice over LTE  to provide voice service on its network. Jio launched on 27 December 2015 (the eve of the 83rd birthday of Reliance Industries founder  Dhirubhai Ambani ), with a beta for partners and employees, and became publicly available on 5 September 2016. On 5 July 2018, fixed line broadband service named Gigafiber, was launched by the Reliance Industries Limited's chairman  Mukesh Ambani , during the company's Annual General Meeting. In June 2010,  Reliance Industries  (RIL) bought a 96% stake in Infotel Broadband Services Limited (IBSL) for  ₹ 4,800 crore (US$700 million).Infotel Broadband Services Limited was renamed as Reliance Jio I

Nokia   is a Finnish  multinational   telecommunications ,  information technology , and  consumer electronics  company, founded in 1865. Nokia's headquarters are in  Espoo , in the greater  Helsinki .  In 2017, Nokia employed approx 102,000 people across over 100 countries, did business in more than 130 countries, and reported annual revenues of around €23 billion.  Nokia is a  public limited company   listed on the  Helsinki Stock Exchange  and  New York Stock Exchange .  It  is the world's 415th-largest company measured by 2016 revenues according to the  Fortune Global 500 . Nokia's history dates back to 1865, when  Finnish-Swede   mining engineer   Fredrik Idestam  established a  pulp mill  near the town of  Tampere , Finland . A second pulp mill was opened in 1868 near the neighboring town of  Nokia , offering better  hydropower  resources. Idestam  retired in 1896, making Mechelin the company's chairman. Mechelin expanded into  electricity generation  by 1902 w

Micromax  is an Indian  consumer electronics  company headquartered in  Gurgaon ,  Haryana . It was established as an  IT   Software  company operating in the  Embedded Devices   Domain . It later entered the  Mobile   Handset  business. Micromax was incorporated as Micromax Informatics Ltd. on 29 March 2000 by Zeeshan Ali Zaidi. It began selling mobile telephones in 2008,  focusing on  low pricing to compete with international brands. By 2010, Micromax was one of the largest domestic companies making handsets in the low-cost feature phone segment in India. As of Q3 2014, Micromax is the  Tenth Largest   Smart phone  vendor in the world. The company is facing stiff competition from Chinese companies that are penetrating the Indian market. The company also owns  YU Televentures , which sells its products under the brand name YU. The company has also introduced handsets with innovative features. For instance, Micromax's co-founder  Rahul Sharma  once saw a  public call