Hero Honda - Sa Re Ga Ma Pa Challenge 2009 is the 3rd installment of the Sa Re Ga Ma Pa Challenge series which premiered on July 4, 2008 on Zee TV.
 The show is hosted by Aditya Narayan, who also hosted the previous competition Sa Re Ga Ma Pa Challenge 2007.
 This show features three new mentors, Aadesh Shrivastava, Shankar Mahadevan and Pritam, who join Himesh Reshammiya, who was a judge in the previous edition.
Sa Re Ga Ma Pa Mega Challenge was a special installment of the popular Indian Sa Re Ga Ma Pa vocal contest shown on Zee TV.
 This show was a seven-week-long competition among eight teams representing eight different states and consisting of total 24 talented contestants from past seasons of Sa Re Ga Ma Pa.
 Two teams were competing against each other each week starting October 30, 2009, to head towards the finales.
 The show was made to celebrate the 1000th episode of Sa Re Ga Ma Pa, and the Grand Finale on Dec 12, 2009 marked the 1000th episode of this great singing competition - a historic moment for any show on Indian television.
 Notable Indian singers and musicians were selected for each of the episodes to make the decisions as the judges.
Debojit Saha, (Bengali: দেবজিৎ সাহা ) born at Silchar, Assam in a Bengali Hindu family, is an Indian Bengali singer and past winner of Zee TV's reality series, Sa Re Ga Ma Pa Challenge 2005.
 He was a contestant on Bigg Boss 2.
Ismail Darbar (born 1 June 1964) is an Indian composer and violinist, a popular name in Indian Film Industry: Bollywood.
 He was a contestant on Bigg Boss 3 in 2009.
Sa Re Ga Ma Pa Challenge 2007 is an Indian Television singing competition that premiered on 4 May 2007 and ran until 13 October 2007.
 It is the 2nd instalment of the "Sa Re Ga Ma Pa Challenge" series and the 4th public voting competition in the "Sa Re Ga Ma Pa" series.
 Chronologically, the show is preceded by Sa Re Ga Ma Pa L'il Champs, however systematically it is followed by Sa Re Ga Ma Pa Challenge 2005.
 The show features two of the previous mentors, Himesh Reshammiya and Ismail Darbar, and two new mentors to the Challenge series, Bappi Lahiri and Vishal-Shekhar.
 Shaan did not return to host and was replaced by Aditya Narayan, son of playback singer, Udit Narayan.
Bigg Boss 9, also known as Bigg Boss: Double Trouble, (stylized as Bigg Boss: Nau), was the ninth season of the Indian reality TV series "Bigg Boss" that premiered on 11 October 2015 on Colors TV.
 Salman Khan returned to host the ninth season.
Sa Re Ga Ma Pa Challenge USA 2008 is an Indian television singing competition show that has premiered on 20 June 2008 on Zee TV channel.
 It is the first instalment of the "Sa Re Ga Ma Pa Challenge" series in USA and the 6th public voting competition in the "Sa Re Ga Ma Pa" series.
 Chronologically, the show is preceded by Sa Re Ga Ma Pa L'il Champs International, however systematically it is followed by Sa Re Ga Ma Pa Challenge 2009.
Bigg Boss 4 in 2010 was the fourth season of Indian reality TV show "Bigg Boss", which aired on Colors from 3 October 2010.
 This season was longer than its predecessor, "Bigg Boss 3" and lasted for 14 weeks (96 days) ending on 8 January 2011.
 The show was hosted by Salman Khan.
Bigg Boss 3 in 2009 was the third season of the Indian reality TV programme "Bigg Boss".
 It began airing on 4 October 2009 on Colors with Amitabh Bachchan as the host and aired for 84 days concluding on 26 December 2009.
 Vindu Dara Singh won the show while Pravesh Rana was declared the first runner-up and Poonam Dhillon was declared the second runner-up.
 Vindu was awarded with a prize money of INR 10 million.
 He was also announced the most stylish and bold contestant and won a Chevrolet Cruze.
 This season, the house was located the city of Lonavla in the Indian state of Maharashtra.
Bigg Boss 8, which merged into "Bigg Boss Halla Bol!
", was the eighth season of the Indian reality television series "Bigg Boss", which premiered on TV channel Colors from 21 September 2014 and concluded on 3 January 2015 with five final contestants.
 "Bigg Boss" is the Indian edition of "Big Brother".
 Salman Khan returned as the host of the series for the fifth time and Snapdeal was chosen to be the new presenting sponsor after the end of Colors' five-year deal with Vodafone India for the series.

Question: Name the musician who was one of the mentors in "Sa Re Ga Ma Pa" and also was a contestant on Bigg Boss 3 in 2009?
Answer: Ismail Darbar