Question: Diya Aur Baati Hum was replaced by a romantic drama series that premiered on what date?

Context paragraphs:
Diya Aur Baati Hum: Diya Aur Baati Hum (English: "You are the lamp and I am the wick") is a 2011 Indian television soap opera that was broadcast on Star Plus.  The series premiered on 29 August 2011 and aired from Monday to Sunday at 9 pm IST.  It stars Anas Rashid and Deepika Singh in lead roles.  The last episode was aired on 10 September 2016 and got replaced by another show called Naamkarann.  But later on a sequel to the series, "Tu Sooraj, Main Saanjh Piyaji", began airing on 3 April 2017.

Neil Bhatt: Neil Bhatt (born August 4, 1987) is an actor who has been active on television since 2008.  He has played many challenging roles, one of them being Kesar in Gulaal and Zakir in Diya Aur Baati Hum.  His performance as Lakshman, the soul of Ram in Ramayan was widely appreciated.  He has also starred in Kaboom dance reality show as a participant and in the fiction series 12/24 Karol Bagh as Abhinav Taneja.  la He was last seen in a daily soap playing one of the leads in Tum Hi Ho Bandhu Sakha Tum Hi as Bhushan Pethawala.  He was also seen in episodic series of Zindagi Wins and Pyar Tune Kya Kiya.

Kanishka Soni: Kanishka Soni (born 16 August 1989) is an Indian actress and model from Mumbai.  She has studied M.B.A. in finance from University of Mumbai.  After her studies she was selected for a singing reality shows bathroom singer on Filmy Tv by Optimystix Entertainment.  She is best known for her character "Daisa's bahu" in Star Plus Tv show Diya Aur Baati Hum. , "Manjari Satya Nayak" in Life Ok Television series Do Dil Ek Jaan opposite to Akshay Dogra, and for playing the role of Sati's sister Raveti in Devon Ke Dev...Mahadev on Life Ok,Parashavi (Vidur's Wife) in Star Plus TV soap opera Mahabharat, Maya Thakur in Begusarai (TV series) on &TV.  Currently she is playing Sumitra in "Sankatmochan Mahabali Hanumaan" on Sony Entertainment Television.

Varun Khandelwal: Varun Khandelwal is an Indian television actor.  He has played roles in many serials like Bhabhi, Kahaani Ghar Ghar Kii, Jyoti, Yahaaan Main Ghar Ghar Kheli, Diya Aur Baati Hum and "Sajan Ghar Jaana Hai".

Gulaal (TV series): Zindgi Ka Har Rang ... Gulaal,(Hindi: ज़िंदगी का हर रंग ,(English: All the colors of life , was a drama-series that aired on Star Plus.  This show is produced by Sphere Origins and premiered on 15 November 2010 and was aired till 28 August 2011.  "Gulaal" is written by Prakash Kapadia and directed by Sidharth Sengupta.  The show concluded on 28 August 2011 as "Diya Aur Baati Hum" replaced Gulaal.

Kanika Maheshwari: Kanika Maheshwari (born 24 April 1981) is an Indian television actress.  She is best known for her roles in serials like "Kahaani Ghar Ghar Kii", "Raja Ki Aayegi Baraat", "Kabhi Aaye Na Judaai", "Viraasat", "Geet - Hui Sabse Parayi" and "Diya Aur Baati Hum".  Kanika won Zee Gold Awards (2012-2013) and Star Parivaar Award (2012) for Best Actress in a Negative Role of Meenakshi in "Diya Aur Baati Hum".

Naamkarann: Naamkarann "(English: Naming)" is an Indian Hindi romantic drama television series, which premiered on 12 September 2016 and is being broadcast on Star Plus.  It is inspired by the 1998 movie Zakhm which was based on Mahesh Bhatt's life.  The serial is dubbed into Malayalam as Vezhambal and is being broadcast on Asianet.

Anas Rashid: Anas Rashid is an Indian television actor who actively works in the Indian soap operas. Born and raised in Malerkotla, he is the first cousin of television actors Mohammad Nazim and Ather Habib.  Rashid begin his acting career with a supporting role in the Star Plus tragic romance "Kahiin To Hoga" (2006–07).  He rose to fame for portraying the Eponymous character in the highly successful historical drama "Dharti Ka Veer Yodha Prithviraj Chauhan" (2006–09), that garnered him critical acclaim and several awards.  From 2011–16, Rashid portrayed the leading role of an illiterate shopowner who marries a highly educated women and supports her in becoming an IPS officer in the romance "Diya Aur Baati Hum", which rank among the highest-rated Indian television series.

Dinesh Mehta: Dinesh Mehta is an Indian Bollywood and Television actor.  He has done his roles in various Hindi television serials, like Dharmakshetra as Bhima , Buddha (TV series)king prasanjeet Buddha, Suryaputra Karn as Jayadratha, and in Diya Aur Baati Hum, playing the role of villain Someshwar Pawar.  He has also appeared in episodics of SuperCops vs Supervillains, Halla Bol and .  Love marriage arrange marriage on Sony TV,

Tu Sooraj, Main Saanjh Piyaji: Tu Sooraj Main Saanjh Piyaji (English: "You're The Sun, I'm The Twilight, Beloved") is a 2017 Indian television soap opera that airs on Star Plus.  The series stars Rhea Sharma and Avinesh Rekhi and is the sequel to the series "Diya Aur Baati Hum".  Neelu Vaghela, Ashok Lokhande, and Kanika Maheshwari reprise their roles from that series.  The series premiered in April 2017 and was originally broadcast in the afternoon during the Star Dopahar programming block. <ref name="IE end date">

Supporting paragraphs: Diya Aur Baati Hum Naamkarann
Answer: 12 September 2016