Carroll & Batchelor was an architectural partnership in Dublin, Ireland, formed by James Rawson Carroll and Frederick Batchelor around 1892.
 The firm is best known for its work on many of Dublin's Victorian era hospitals.
Manorama (16 August 1926 – 15 February 2008) was a Bollywood character actress known best for her role as the comical tyrant aunt in "Seeta Aur Geeta" (1972) and film like "Ek Phool Do Maali" (1969) and "Do Kaliyaan" (1968).
 She started her career as a child artiste in 1936 in Lahore, under the name Baby Iris.
 Thereafter she made her debut as in adult actress in 1941 to her final role in "Water" in 2005, her career extending over 60 years.
 Through her career she acted in over 160 films.
 After playing heroine roles in the early 1940s she settled into playing villainous or comic roles.
 She played comic roles in superhit films such as "Half Ticket" appearing alongside Kishore Kumar and the legendary Madhubala.
 She gave memorable performances in "Dus Lakh", "Jhanak Jhanak Payal Baaje", "Mujhe Jeene Do", "Mehboob ki Menhdi", "Caravan", "Bombay to Goa" and "Lawaris".
A Song to Sing, O is a one-man musical play by Melvyn Morrow with songs by Gilbert and Sullivan and by George Grossmith, about the life of comedian and actor George Grossmith, who originated the principal comic roles for the most famous Savoy operas from 1877 through the 1880s.
 The plot concerns a fictional backstage interview given by Grossmith to an American reporter in 1889 during his last performance of "The Yeomen of the Guard" – indeed, his last performance for the D'Oyly Carte Opera Company (although he did return briefly in 1897 in "His Majesty").
 In between some interview gossip, Grossmith sings Gilbert and Sullivan songs, and some of his own songs to the reporter, and he enacts a scene from Grossmith's book, "The Diary of a Nobody".
Victorian architecture is a series of architectural revival styles in the mid-to-late 19th century.
 "Victorian" refers to the reign of Queen Victoria (1837–1901), called the Victorian era, during which period the styles known as Victorian were used in construction.
 However, many elements of what is typically termed "Victorian" architecture did not become popular until later in Victoria's reign.
 The styles often included interpretations and eclectic revivals of historic styles mixed with the introduction of Middle Eastern and Asian influences.
 The name represents the British and French custom of naming architectural styles for a reigning monarch.
 Within this naming and classification scheme, it follows Georgian architecture and later Regency architecture, and was succeeded by Edwardian architecture.
Robi Ghosh (Bengali: রবি ঘোষ ) (24 November 1931 – 4 February 1997) was an Indian actor and comedian who worked in Bengali cinema.
 He is best known for his comic roles, though his versatile acting talent brought him success in various kinds of roles.
 He was a regular in Satyajit Ray films over the years.
 Till date, he is remembered for his comic roles in Satyajit Ray's movies.
 Robi Ghosh was a renowned actor in Bengali theatre and TV as well.
John Lamb Reed, OBE (13 February 1916 – 13 February 2010) was an English actor, dancer and singer, known for his nimble performances in the principal comic roles of the Savoy Operas, particularly with the D'Oyly Carte Opera Company.
 Reed has been called "the last great exponent" of the Gilbert and Sullivan comedy roles.
Robert Reece (2 May 1838 – 8 July 1891) was a British comic playwright and librettist active in the Victorian era.
 He wrote many successful musical burlesques, comic operas, farces and adaptations from the French, including the English-language adaptation of the operetta "Les cloches de Corneville", which became the longest-running piece of musical theatre in history up to that time.
 He sometimes collaborated with Henry Brougham Farnie or others.
Nicholson Cemetery, formerly known as the Old Delhi Military Cemetery and the Kashmere Gate Cemetery, is a Christian cemetery located in Kashmere Gate, Delhi, India.
 It is located near the Kashmere Gate Metro Station and west of the Inter State Bus Terminal.
 It is the site of the earliest known Christian burials in Delhi NCR.
 The cemetery was established in 1857 and is named after Brigadier-General John Nicholson, a Victorian era military officer who played a pivotal role during the Indian Rebellion of 1857.
 The St. James' Church, who owns the cemetery, is the oldest place of worship for the Christian community of Delhi.
 The church along with cemetery, St. Stephen's hostel, and the Victorian era houses of Kashmere Gate neighbourhood were once considered to be "centripetal" part of Christians in Delhi.
Gilbert and Sullivan refers to the Victorian-era theatrical partnership of the librettist W. S. Gilbert (1836–1911) and the composer Arthur Sullivan (1842–1900) and to the works they jointly created.
 The two men collaborated on fourteen comic operas between 1871 and 1896, of which "H.M.S. Pinafore", "The Pirates of Penzance" and "The Mikado" are among the best known.
James Conroy-Ward (born 12 April 1947) is a music publisher and retired English actor and singer best known for performing the Gilbert and Sullivan principal comic roles with the D'Oyly Carte Opera Company.

Question: What is the name of this Victorian era theatrical partnership of a librettist and composer for which James Conroy-Ward is best known for performing its principal comic roles?
Answer: Gilbert and Sullivan