Question: When was the Indian Hindi historical period drama television series premiered in which Juhi Parmar appears?

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Hawkeye and the Last of the Mohicans: The Last of the Mohicans, later retitled Hawkeye and the Last of the Mohicans is a 1957 historical period drama television series made for syndication by ITC Entertainment and Normandie Productions.  It ran for one season of 39 half-hour monochrome episodes.  The series is available on DVD and some episodes on VHS.

Shani (TV series): Karmaphal Daata Shani (English: "The lord of the deeds Shani") is an Indian Hindi historical period drama television series, which premiered on 7 November 2016 and is broadcast on Colors TV.  The series is produced by Swastik Productions of Siddharth Kumar Tewary.  The series airs every Monday to Friday 9.00 pm The series has dubbed into Telugu on Gemini TV and it airs every Monday to Saturday 8:30 pm from 24 July 2017.

Kaalapani: Kaalapani (English: "Black Water" ) is a 1996 Indian Malayalam language epic historical period drama film co-wriiten and directed by Priyadarshan, set in 1915 it focus on the lives of Indian freedom fighters incarcerated in prison during the British Raj.  The film stars Mohanlal, Prabhu Ganesan, Tabu, Amrish Puri, Nedumudi Venu, Sreenivasan, Tinnu Anand, Annu Kapoor, Alex Draper, and Vineeth.  "Kaalapani" is regarded as one of the classics in Malayalam cinema.  Originally produced in Malayalam, the film was dubbed and released in Hindi as "Saza-E-Kala Pani", Tamil as "Siraichalai", and in Telugu as "Kaala Pani".  Amitabh Bachchan bought the Hindi dubbing rights, besides narrating the prologue for the Hindi version.

Historical period drama: The term, historical period drama (also historical drama, period drama, costume drama, and period piece) refers to a work set in an earlier time period; usually used in the context of film and television.  It is an informal crossover term that can apply to several genres and is often heard in the context of historical fiction and romances, adventure films, and swashbucklers.  A period piece may be as long and general as the middle ages or as limited as one decade, for example, the Roaring Twenties.

31st October (film): 31st October is an Indian Hindi historical action drama film written and produced by Harry Sachdeva and directed by Shivaji Lotan Patil.  The film, based on a true story, focuses on the aftermath of Indira Gandhi's assassination which occurred on 31 October 1984.

23rd March 1931: Shaheed: 23rd March 1931: Shaheed is a 2002 Indian Hindi historical biographical film about Bhagat Singh, directed by Guddu Dhanoa which depicts the events leading up to the hanging of Indian freedom fighter Bhagat Singh and his companions Rajguru and Sukhdev on 23 March 1931.  The film stars Bobby Deol as Bhagat Singh, his elder brother Sunny Deol as Chandrashekhar Azad and Amrita Singh in her comeback role as Bhagat Singh's mother.  Aishwarya Rai has a special appearance in a song.

Take Care, Your Highness!: Take Care, Your Highness!  is a 1985 Hong Kong historical period drama television series produced by TVB and starring Andy Lau in the title role of Kin-lung Emperor, the sixth emperor of the Qing Dynasty.  The series focuses on the power struggle in the Imperial Qing Palace, telling the story of righteous folks while also presenting a hesitant love story.

Juhi Parmar: Juhi Parmar (born 14 December 1980) is an Indian TV personality and an anchor, actress, television presenter, singer and dancer.  She is best known for her role as Kumkum in Television Series Kumkum Ek Pyara Sa Bandhan.  She is the winner of fifth season of the reality television show Bigg Boss that aired on Colors TV.  She currently appears In Colors TV's High Rated mythological Show Shani.

Downton Abbey (series 2): The second series of British-American historical period drama television series "Downton Abbey" aired from 18 September 2011 to 6 November 2011, comprising a total of 8 episodes and one Christmas Special episode aired on 25 December 2011.  It was broadcast in the United Kingdom on ITV and in the United States on PBS on 8 January 2012.  Series 2, explored the lives of the Crawley family and the events of Battle of the Somme, Battle of Amiens, Armistice of 11 November 1918, Russian Revolution to Spanish flu epidemic and their servants' ball in the early 1920s.

Peshwa Bajirao (TV series): Peshwa Bajirao is an Indian Hindi historical period drama television series, which premiered on 23 January 2017 and is being broadcast on Sony TV.  The series is based on Maratha Peshwa "Bajirao I", who ruled under "Chhatrapati Shahu".  The series has been produced by Sphere Origins of Sunjoy Waddhwa and creatively produced by Nilanjana Purkayasstha's company Invictus T Mediaworks.  The series will be aired on weekdays.

Supporting paragraphs: Juhi Parmar Shani (TV series)
Answer: 7 November 2016