32.Flipkart Electronics retail company

Flipkart Internet Private Limited is an e-commerce company based in Bengaluru, India. Founded by Sachin Bansal and Binny Bansal in 2007, the company initially focused on book sales, before expanding into other product categories such as consumer electronics, fashion, and lifestyle products.

Customer service: 1800 208 9898

CEO: Kalyan Krishnamurthy (Jan 2017–)

Founded: October 2007

Subsidiaries: Myntra, PhonePe, Upstream Commerce Ltd., MORE

Founders: Binny Bansal, Sachin Bansal

Parent organization: Walmart

31.Facebook Messenger Social network company

Facebook Messenger

Description

Facebook Messenger is a messaging app and platform. Originally developed as Facebook Chat in 2008, the company revamped its messaging service in 2010, and subsequently released standalone iOS and Android apps in August 2011.

Developed by: Facebook

Initial release date: 9 August 2011

Android: 226.0.0.9.117 / July 30, 2019; 11 days ago

IOS: 220.1 / June 21, 2019; 50 days ago

Windows: 139.0 / January 6, 2018; 19 months ago

Programming languages: JavaScript, PHP, Erlang, C++

30.ABOUT TIKTOK

TikTok is an iOS and Android social media video app for creating and sharing short lip-sync, comedy, and talent videos. The app was launched in 2017 by ByteDance, for markets outside of China. ByteDance has previously launched Douyin for the China market in September 2016.

Developed by: ByteDance

Stable release: 12.2.0 / 17 July 2019

Initial release date: September 2016

Size: 308.3 MB (iOS); 80.19 MB (Android)

Operating system: iOS, Android

Available in: 33 languages

29.ABOUT WHATSAPP (2019)

WhatsApp Messenger is a freeware, cross-platform messaging and Voice over IP service owned by Facebook. It allows users to send text messages and voice messages, make voice and video calls,

 Initial release: January 2009; 10 years ago

Developer(s): WhatsApp Inc

Written in: Erlang

Size: ~157.7 MB (iOS); ~25.09 MB (Android)

Owner: Facebook

28.Instagram Social networking service (2019)

Instagram is a photo and video-sharing social networking service owned by Facebook, Inc. It was created by Kevin Systrom and Mike Krieger, and launched in October 2010 exclusively on iOS.

Date launched: 6 October 2010

Android: 105.0.0.18.119 / August 7, 2019; 5 days ago

Owner: Facebook, 

Developed by: Facebook, Kevin Systrom, Mike Krieger

Awards: Shorty Award for Apps

Nominations: Teen Choice Award for Choice Social Network

27.ABOUT Facebook, . Social network company (2019)

Facebook, Inc. is an American online social media and social networking service company based in Menlo Park, California. It was founded by Mark Zuckerberg, along with fellow Harvard College students and roommates Eduardo Saverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes

Founded: February 2004, Cambridge, Massachusetts, United States

CEO: Mark Zuckerberg

Headquarters: Menlo Park, California, United States

CFO: David Wehner

Founders: Mark Zuckerberg, Andrew McCollum, Dustin Moskovitz, Eduardo Saverin, Chris Hughes

Subsidiaries: LiveRail, WhatsApp Inc., Oculus VR, Onavo, 

26.TOP 5 largest airports in the world by passenger number (2019)

• #1 Hartsfield-Jackson Atlanta International Airport (ATL)
• #2 Beijing Capital International Airport (PEK)
• #3 Dubai International Airport (DXB)
• #4 Los Angeles International Airport (LAX)
• #5 Tokyo Haneda Airport (HND)

25.top ten METROPOLITAN cities in India

• 1. Delhi : India's capital territory
• 2. Mumbai : a City of Dreams, Known for 'Bollywood'
• 3. Kolkata : formerly Calcutta
• 4. Chennai : 'Gateway to South India'
• 5. Bangalore : also known 'Bangalore' India's Silicon Valley
• 6. Ahmedabad : known for its Textile Industries
• 7. Hyderabad : known for its 'Pearls'
• 8. Pune : known as the 'Oxford of the East'
• 9. Surat : Silk City of India
• 10. Jaipur : known as the Pink City 'Land of Kings'

24. important mugal rulers and their time period

Rank	Mughal Ruler	Period of Rule
1	Babur	1526 – 1530
2	Humayun	1530 – 1540 1555 – 1556
3	Akbar	1556 – 1605
4	Jahangir	1605 – 1627
5	Shahryar (de facto)	1627 – 1628
6	Shah Jahan	1628 – 1658
7	Aurangzeb	1658 – 1707

23.TOP 8 RICHEST MAN IN THE WORLD (2019)

• 1 Jeff Bezos. .
• 2 Bill Gates. .
• 3 Warren Buffett. 
• 4 Bernard Arnault & family. 
• 5 Carlos Slim Helu & family. 
• 6 Amancio Ortega. .
• 7 Larry Ellison. 
• 8 Mark Zuckerberg.

22. highly populated cities in india

City	Population
Greater Mumbai	1,84,14,288
Delhi	1,63,14,838
Kolkata	1,41,12,536
Chennai	86,96,010
Bengaluru	84,99,399
Hyderabad	77,49,334
Ahmadabad	63,52,254
Pune	50,49,968
Surat	45,85,367
Jaipur	30,73,350

21. 10 biggest cities in the world

Rank	City	Country	Population
1	Shanghai	China	24,153,000
2	Beijing	China	18,590,000
3	Karachi	Pakistan	18,000,000
4	Istanbul	Turkey	14,657,000
5	Dhaka	Bangladesh	14,543,000
6	Tokyo	Japan	13,617,000
7	Moscow	Russia	13,197,596
8	Manila	Philippines	12,877,000
9	Tianjin	China	12,784,000
10	Mumbai	India	12,400,000

20 .longest rivers in india

Major Rivers by Length

1. Indus -                                                  3,180 km.
2. Brahmaputra -                                      2,900 km. ...
3. Yarlung Tsangpo -                                2,840 km. ...
4. Ganges                 -                              2,525 km. ...
5. Godavari -                                            1,465. ...
6. Sutlej -                                                  1,450 km. ...
7. Krishna -                                               1,400. ...
8. Yamuna -                                              1,376 km. ..

19.smallest countries and its population (2019)

1. Vatican City. Population: 451.
2. Tuvalu. Population: 10,640. ...
3. Nauru. Population: 11,347. ...
4. Palau. Population: 21,097. ...
5. San Marino. Population: 33,285. ...
6. Monaco. Population: 37,623. ...
7. Liechtenstein. Population: 37,815. ...
8. Marshall Islands. Population: 53,066. ...