Question: MTV Kaisi Yeh Yaariaan was an Indian youth television series that aired on MTV India from 21 July 2014 to 31 December 2015, it is loosely based on which 2009 Korean drama television series starring Lee Min-ho, Ku Hye-sun, Kim Hyun-joong (of SS501), Kim Bum, Kim Joon (of T-Max) and Kim So-eun?
Context: MTV Kaisi Yeh Yaariaan was an Indian youth television series that aired on MTV India from 21 July 2014 to 31 December 2015.  It is loosely based on the Korean drama, "Boys Over Flowers" and the former's adapted material, the Japanese shōjo manga, "Hana Yori Dango".  The show gained immense popularity, in particular Manik and Nandini's love story, collectively known as MaNan on social networking sites, and has been considered a rage among the young audience.  The show went on to be a hit amongst the audience and huge success making it the No.1 Youth Show in India during its run. The Musical () is a 2011 South Korean television series starring Ku Hye-sun, Choi Daniel, Park Ki-woong, Ock Joo-hyun and Kim Eun-se.  It aired on SBS from September 2 to December 23, 2011 on Fridays at 22:00 for 15 episodes. Scholar Who Walks the Night () is a 2015 South Korean television series based on the manhwa of the same name written by Jo Joo-hee and illustrated by Han Seung-hee.  Starring Lee Joon-gi, Shim Chang-min, Lee Soo-hyuk, Lee Yu-bi and Kim So-eun, it aired on MBC from July 8 to September 10, 2015 on Wednesdays and Thursdays at 21:55 for 20 episodes. MTV India is the Indian version of MTV, a channel specialising in music, reality, and youth culture programming.  It was launched in 1996 and is now part of the Viacom 18 Media Pvt. Ltd based in Mumbai, a 50/50 joint venture operation between Viacom Inc. and Network TV 18.  MTV India is one of the oldest music television networks in Asia.  Music has always been distinctively recognized and acknowledged with respect to India, thus MTV India has been very successful there.  MTV India is one of the most popular music channels across the Indian subcontinent, having viewership shares in India and also countries like Bangladesh and Sri Lanka.  Most of the programming on the channel is in Hindi. Boys Over Flowers () is a 2009 South Korean television series starring Lee Min-ho, Ku Hye-sun, Kim Hyun-joong (of SS501), Kim Bum, Kim Joon (of T-Max) and Kim So-eun.  It aired on KBS2 from January 5 to March 31, 2009 on Mondays and Tuesdays at 22:00 for 25 episodes. MTV Love School is an Indian youth reality television series, which will be premiered on 5 December 2015, and will be broadcast on MTV India.  The series will be produced by MTV India. Charlie Chauhan (born 8 September 1989) is an Indian television actress known for playing the role of Ela in the teen drama "Best friends Forever? " and Mukti in the popular youth show "Kaisi Yeh Yaariyan".  Chauhan started her career with the popular MTV reality show "MTV Roadies 7".  Chauhan played the lead role in the show "Best Friends Forever", alongside Shritama Mukherjee a.k.a. Vinita Maheshwari (Vinnie), Fenil Umrigar a.k.a. Sanjana Roy (Sanju) and Parth Samthaan a.k.a. Prithvi Sanyal.  She also participated in the reality dance show "Nach Baliye 5".  She was seen in the first episode of "Yeh Hai Aashiqui" in a side role and in the main role in the latter episodes of the series.  She portrayed the character of Mukti in MTV's popular youth show "Kaisi Yeh Yaariyan" opposite Abhishek Malik a.k.a. Harshad Saxena and later Zain Imam a.k.a. Abhimanyu Thakkar. Angel Eyes () is a 2014 South Korean television series starring Lee Sang-yoon, Ku Hye-sun, Kim Ji-seok and Seungri.  It aired on SBS from April 5 to June 15, 2014 for 20 episodes. Taylor made her television debut with the serial "Pyaar Ka Bandhan" in 2009.  Her big break came through her first lead role as Nandini Murthy in MTV India's youth show "Kaisi Yeh Yaariyan", opposite Parth Samthaan. The Heirs (왕관을 쓰려는 자, 그 무게를 견뎌라 – 상속자들 ), also known as The Inheritors, is a South Korean television series starring Lee Min-ho, Park Shin-hye and Kim Woo-bin.  Written by Kim Eun-sook, the trendy drama is set in a high school populated by the privileged and uber-rich.  It aired on SBS from October 9 to December 12, 2013 on Wednesdays and Thursdays at 22:00 for 20 episodes.
Answer: Boys Over Flowers