Ae Dil Hai Mushkil (English: "This Heart is Complicated" ) is a 2016 Indian romantic drama film written and directed by Karan Johar.
 It features Ranbir Kapoor, Anushka Sharma and Aishwarya Rai Bachchan in lead roles.
 It was released on 28 October 2016 on the Diwali weekend.
Nawalgarh (Hindi: , Rajasthani: नौलगढ ) is a town in Jhunjhunu district of Indian state Rajasthan.
 It is part of the Shekhawati region and is midway between Jhunjhunu and Sikar.
 It is 30 km from Sikar and 39 km from Jhunjhunu.
 Nawalgarh is famous for its fresco and havelis and considered as Golden City of Rajasthan.
 It is also the motherland of some great business families of India.
 Many Bollywood/Hollywood/Tollywood movies are shot in Nawalgarh like Paheli, Ae Dil e Mushkil etc.
Mushkil (Urdu: , "lit."
 difficult) is an Urdu film which was released on 1995 across theaters in Pakistan.
 The film dealt with the issue of child-camel-jockeys illegally trafficked from the third world into the numerous Arab countries.
 The super-hit film music was composed by Amjad Bobby.
 Hit tracks included "Dil Ho Gaya Hai Tera Deewana" and "Mushkil Hai Bara Mushkil Hai".
"Channa Mereya" (English: "The light of my soul") is a song from the Indian film "Ae Dil Hai Mushkil".
 The song is penned by Amitabh Bhattacharya, composed by Pritam and sung by Arijit Singh.
 It was released on 29 September 2016 by Sony Music India.
Lisa Haydon (born Elisabeth Marie Haydon; 17 June 1986) is an Indian supermodel, fashion designer, and actress, who mainly appears in Hindi films.
 Haydon made her acting debut with a supporting role in the 2010 romantic comedy "Aisha" and received critical praise for her performance in the comedy-drama "Queen", which garnered wide recognition and a Best Supporting Actress nomination at Filmfare, among other accolades.
 Haydon later starred in the commercially successful romantic comedy "Housefull 3" and had a brief role in the Karan Johar-directed romantic drama "Ae Dil Hai Mushkil" (both 2016).
Amit Mishra is an Indian singer, songwriter, voice actor and live performer.
 He became more well-known after the release of the song "Bulleya" sung by him from the film Ae Dil Hai Mushkil; for his rendition of the song he won a Filmfare Award for new music talent, Screen Award for Best Male Playback and IIFA Award for Best Male Playback.
 He got nominated for the same song in different award shows.
 He has also sung in some of Telugu, Bengali and Marathi films.
Shyama (born Khurshid Akhtar; 7 June 1935, Lahore) is a former Bollywood actress.
 Her best known roles were in "Aar Paar" (1954), "Barsaat Ki Raat" (1960) and "Tarana".
 She was also noticed in 'Sawan Bhadon', 'Dil Diya Dard Liya', 'Milan' and 'Sharda' for which she was awarded Filmfare Award for Best Supporting Actress.
 Like Shammi Kapoor in male actors, she is the actress who has been most responsive to the rhythm and lyrics of the music directors and poets.
 Songs picturised on her like 'ae dil mujhe bata de', 'O chand jahan wo jaye', 'ae lo main hari piya', ' dekho, wo chand chhup ke karata hai kya ishare', 'chhupa ke meri aankhon ko', 'ja re ka re badara' are examples of her sensitive acting.
Shadab Rayeen is an Indian sound engineer.
 His best known work is the mix of Ae Dil Hai Mushkil.
 He has been honoured with the "Best Recording Engineer Award" in the category of Technical Awards for the mix of Ae Dil Hai Mushkil by International Indian Film Academy Awards.
"Ae Dil Hai Mushkil" (English: "This Heart is Complicated") is a Hindi song from the soundtrack of the Indian film "Ae Dil Hai Mushkil".
 It is written by Amitabh Bhattacharya, composed by Pritam and sung by Arijit Singh.
 The music video of the song is picturised on actor Ranbir Kapoor.
Arijit Singh is an Indian musician, singer, composer, music producer, recordist, music programmer, and live performer.
He predominantly sings in Hindi and Bengali, but

Question: Who is the singer of Ae Dil Hai Mushkil?
Answer: Arijit Singh