"Bolo Bolo Bolo Sobe" is a patriotic song written by Atulprasad Sen.
 The original rendition was done by Calcutta Youth Choir in 1953 as a part of the album "Swadeshi Juger Gaan" released by HMV on 1 December of the same year.
 The duration of the song is 4:29 minutes.
Ruma Guha Thakurta (Bengali: রুমা গুহঠাকুরতা ) is a Bengali actress and singer.
 She was born on 21 November 1934.
 She founded Calcutta Youth Choir in 1958.
 She is the daughter of Satyen Ghosh (Monty Ghosh) and her mother was Sati Devi (a famous singer of her times).
 She was married to Kishore Kumar in 1951 and has a son Amit Kumar by this marriage .
 The couple got divorced in 1958 and she married Arup Guha Thakurta.
Salil Chowdhury (Bengali: সলিল চৌধুরী ; 'Solil Choudhuri' in phonetic Wiki-Bengali; 19 November 1922 – 5 September 1995) was an Indian music composer, who mainly composed for Bengali, Hindi and Malayalam films.
 He was also a poet and a playwright.
 He is affectionately called "Salilda" by his admirers.
Joradighir Chowdhury Paribar is a 1966 Bengali film directed by Ajit Lahiri and produced by Sunil Ram.
This film under the banner Shadow Productions.The film starring Soumitra Chatterjee, Madhabi Mukherjee, Asit Baran, Bhanu Bandyopadhyay, Tarun Kumar, Bikash Roy, Kali Banerjee, Nirmal Ghosh, Sabitri Chatterjee, Ruma Guha Thakurta in the lead roles.
Amit Kumar is an Indian film playback singer, actor, director, and music director.
 He is the son of the Indian singer and actor Kishore Kumar and the Bengali singer and actress Ruma Guha Thakurta.
Calcutta Youth Choir (Bengali: ক্যালকাটা ইয়ুথ কয়্যার ) was set up in 1958 by Ruma Guha Thakurta with Salil Chowdhury and Satyajit Ray.
Amrita Kumbher Sandhane ( Bengali: অমৃত কুম্ভের সন্ধানে , Quest for the Pitcher of Nectar) is a 1982 Bengali film directed by Dilip Roy.
 It is based on a story by "Kalkut", pseudonym of Samaresh Basu (1924–1988).
 Music is by Sudhin Dasgupta and stars Shubhendu Chatterjee, Aparna Sen, Bhanu Bandhopadhyay, Samit Bhanja, Ruma Guha Thakurta amongst others.
Cytgan (Welsh for chorus) is a chamber choir whose members come from all over Wales and sings without a conductor.
 The Choir was established in 1999 while many of its members were in the National Youth Choir of Wales.
 The choir’s intention at the time was to ensure opportunities for its members to sing together all year round while continuing to develop their choral abilities and friendship.
 Since its inception Cytgan has gone from strength to strength, staging concerts around Wales and England, and has enjoyed considerable success in competitions.
 It is a regular competitor at Gŵyl Fawr Aberteifi, the annual Gŵyl Cerdd Dant and the National Eisteddfod of Wales.
 Cytgan won the youth choir competition at the National Eisteddfod at Meifod in 2003.
 The choir also brought the 2005 Llandeilo Music Festival to a close, and reached the final round of the S4C Cor Cymru 2005 mixed choir competition.
 The choir's CD, ‘Cytgan’, which was released by Fflach Records, has also been successful.
 The choir was also involved in the recording of Karl Jenkins latest CD, ‘Requiem’.
 Members of Cytgan have often been invited to participate in radio and television programmes.
Gérard'd du Toit (born in Nelspruit, South Africa) is a composer and a conductor.
 Since 1996 he has been the artistic director of the KwaZulu-Natal Youth Choir.
 Previous choirs commanded by him include the Panasonic Highveld and Youth Choir and the Drakensberg Boys' Choir School where he served as choirmaster.
Bairaag is a 1976 Bollywood film.
 Produced by the duo Mushir-Riaz, it is directed by Asit Sen.
 The film stars Dilip Kumar, who received a Filmfare nomination for Best Actor for playing a triple role.
 "Bairaag" also stars Saira Banu, Leena Chandavarkar, Ruma Guha Thakurta, Prem Chopra, Helen, Sujit Kumar, Madan Puri, Paintal, Kader Khan, Asit Sen and Sachin.
 Its music is by the duo Kalyanji Anandji, who received a Filmfare nomination for Best Music.
 The film received a Filmfare Award for Best Sound for P. Harikishan.
 According to one source, the film did not do well at the box office.

Question: Calcutta Youth Choir was set up in 1958 by Ruma Guha Thakurta with an Indian music composer who was also a poet and a what?
Answer: playwright