Question: Anant Vidhaat Sharma co-directed which film with Ali Abbas Zafar?

Context paragraphs:
Gunday: Gunday (English: "Outlaws") is a 2014 Indian action thriller film written and directed by Ali Abbas Zafar and produced by Aditya Chopra.  The film featured Ranveer Singh, Arjun Kapoor, Priyanka Chopra and Irrfan Khan in the lead roles.  Set in 1971–1988 Calcutta, "Gunday" is a story about two best friends (the most powerful outlaws of their time) who fall in love with a beautiful cabaret dancer, which causes rivalry and misunderstandings between them.

Ali Abbas (actor): Ali Abbas is a Pakistani television and film actor.  He is the son of actors Waseem Abbas and Saba Hameed, the maternal grandson of columnist Hameed Akhtar, and the paternal grandson of actor Inayat Hussain Bhatti.

Tum Kon Piya: Tum Kon Piya was a Pakistani romantic drama serial aired on Urdu1.  It was produced by 7th Sky Entertainment and directed by Yasir Nawaz, and is based on Maha Malik's best selling novel of the same name.  It starred Ayeza Khan, Imran Abbas, Ali Abbas, Hina Khawaja Bayat, Hira Tareen etc.  It premiered on 23 March 2016 and ended on 26 October 2016.  The serial was a success for the channel.

Mere Brother Ki Dulhan: Mere Brother Ki Dulhan, ("My Brother's Bride") also known by the abbreviated form MBKD, is a 2011 Indian romantic comedy-drama film directed and written by Ali Abbas Zafar.  It stars Imran Khan, Katrina Kaif, Ali Zafar and debutante Tara D’Souza in the lead roles.  Produced and distributed by Yash Raj Films, the official theatrical trailer was released on 13 July 2011.  The film released on 9 September 2011, to positive reviews from critics.  It was a box office hit grossing million () .

Sultan (2016 film): Sultan is a 2016 Indian romantic sports-drama film directed by Ali Abbas Zafar.  Produced by Aditya Chopra under the Yash Raj Films banner, the film stars Salman Khan as the title character opposite Anushka Sharma.  The film focuses on Sultan Ali Khan, a fictional wrestling champion from Haryana whose successful career creates a rift in his personal life.

Tiger Zinda Hai: Tiger Zinda Hai (English: "Tiger is Alive") is an upcoming Indian spy thriller film directed by Ali Abbas Zafar.  It is the sequel to the 2012 movie "Ek Tha Tiger" and the second installment of "Tiger" film series.  It is scheduled to be released on 22 December 2017.  Salman Khan and Katrina Kaif reunited for the film.

Ali Abbas Zafar: Ali Abbas Zafar is an Indian film director and screenwriter.  He achieved moderate success for his first two films, the romantic comedy "Mere Brother Ki Dulhan" (2011) and the action drama "Gunday" (2014).  He then went on to receive widespread recognition for the sports drama "Sultan" (2016), which ranks among the highest-grossing Indian films.

Anant Vidhaat Sharma: Anant Vidhaat Sharma is an actor and assistant director, known for Gunday (2014), Mardaani (2014) and Sultan(2016). Before doing films he was a theatre artist in Delhi.

Zafar Ali Stadium: Zafar Ali Stadium is a multi-purpose stadium in Sahiwal, Punjab, Pakistan.  It was used for first-class and List A cricket games from 1955 to 1995.  The stadium holds 35,000 people.  Originally known as Sahiwal Stadium, it was renamed Zafar Ali Stadium in honor of Sheikh Zafar Ali Khan, the founder of Pakistan Olympic Association.  PTI chairman Imran Khan played his first international match in this stadium.

Abbas (name): Abbas (Abbass, Arabic: عباس‎ ‎ means "lion" in Arabic The name traces back to Al-‘Abbas ibn ‘Abd al-Muttalib (an uncle of Muhammad) and Abbas ibn Ali, a son of Ali ibn Abi Talib, who participated in the battle of Karbala alongside his half-brother Hussain ibn Ali.  Abbas ibn Ali is revered by Shia Muslims, some of whom are named Abbas in remembrance and tribute to him.  There is an Arabian tribe of the same name, the Banu Abbas.  In Arabic language it literally means "grouchy face" or "frown" referring to a Mean-spirited or a Stern person mainly male.

Supporting paragraphs: Anant Vidhaat Sharma Sultan (2016 film)
Answer: Sultan