WhatsApp is a  freeware  and  cross-platform   messaging  and  Voice over IP (VoIP) service owned by  Facebook . The application allows the sending of  text messages  and voice calls, as well as video calls, images and other media, documents, and user location. The application runs from a  mobile device  though it is also accessible from desktop computers; the service requires  consumer users to provide a standard  cellular   mobile number . Originally users could only communicate with other users individually or in groups of individual users. WhatsApp was founded in 2009 by  Brian Acton  and  Jan Koum , both former employees of  Yahoo! . After Koum and Acton left Yahoo! in September 2007, the duo traveled to South America to take a break from work. At one point, they applied for jobs at Facebook but were rejected. For the rest of the following years Koum relied on his $400,000 savings from Y...

Facebook  is an American online  social media     and   social   networking service  company based in  Menlo Park, California . Its website was launched on February 4, 2004, by  Mark Zuckerberg , along   with   fellow    Harvard College    students  and roommates  Eduardo Saverin ,  Andrew McCollum ,  Dustin Moskovitz , and  Chris Hughes . The founders initially limited the website's membership to Harvard students. Later they expanded it to  higher education institutions in the Boston area , the  Ivy League  schools, and  Stanford University .   Since 2006, anyone who claims to be at least 13 years old has been allowed to become a registered user of Facebook,  The name comes from the  face book  directories often given to American university students.  Facebook makes most of its revenue from  advertisements ...

Several possible origins for the name  Purnea have  been proposed. The name may originate from the  Sanskrit  word  Purna–Aranya , which means "complete jungle".   Purnea is the largest city in northeastern Bihar also known    as  Kosi -  Seemanchal   area.  Total geographical area of Purnea municipal corporation is 92 km sq.  Which  is next only to Patna.The population  of the city is 3058 persons per km sq. making it the  5th largest city of Bihar . It is nearly 300 kilometres from  Patna . The city however lies on the banks of numerous tributaries of the  Koshi River . Its major agricultural products are jute and banana.     Purnia is known for its favourable climate; it has earned the name "Mini  Darjeeling " for this reason. Purnia has a largely humid climate, with the highest level of rainfall in Bihar state and humidity rising to above 70%.  Maithili ,  ...

The  Politics of  Bihar , was characterised, in the early 2000s, by weak governance and  corrupt politicians. Currently, there are four main political Parties:  Janata Dal ,  Bharatiya Janata Party   and the  Rashtriya Janata Dal  and  Jan Adhikar Party  is playing vital role in bihar politics.  while  Indian National Congress  is a small player in Bihar Politics. Bihar  is currently ruled by  Janta Dal            (United)  and  Bhartiya Janta Party        coalition.     Bihar was an important part           of  India 'sstruggle for independence.  Gandhi  became the mass leader only after the  Champaran Satyagraha . The state is divided into 9 divisions and 38 districts, for administrative purposes. The various districts included in the divisions –  Patna ,  Tirhut ,  Sar...