Question: Barkha Sharma is an Indian fashion designer, in 2010, the duo styled who, which  is an Indian classical musician of Hindustani classical music, he plays santoor and is also a vocalist?

full_context: Document 1: Ravi Shankar: Ravi Shankar, KBE (] ; 7 April 192011 December 2012), born Rabindra Shankar Chowdhury, his name often preceded by the title Pandit ('Master'), was a Bengali Indian musician and a composer of Hindustani classical music. He was one of the best-known exponents of the sitar in the second half of the 20th century and influenced many other musicians throughout the world.
Document 2: Sushma Rana: Sushma Rana is a professional Indian shooter. She competes in 25-metre shooting events. She is the younger sister of Jaspal Rana.
Document 3: Rattan Mohan Sharma: Rattan Mohan Sharma (born 14 June 1971) is an Indian classical vocalist. He belongs to the Mewati gharana of Hindustani classical music. He performs classical music forms such as Khayal, Tarana, Dhrupad, Haveli Sangeet, Tappa and also in light classical forms and folk music including Bhajan as well as Rajasthani Folk. He is considered an "A" grade artist on All India Radio .
Document 4: Anamika Khanna: Anamika Khanna (born in Jodhpur, July 19, 1971) is an Indian fashion designer with her own label. She has been covered by the Business of Fashion (BOF) as the Indian designer who has blended traditional Indian textiles and techniques with Western silhouette and tailoring. She is the first Indian designer to have an International label: Ana mika. She is also the first female Indian fashion designer to display her collections at the Paris Fashion Week held in 2007. Ana mika was offered an exclusive contract by British Retail Giant Harrod’s after her participation in the London Fashion Week, 2010. Her philanthropist side was evident when she helped raise large amounts for the Tata cancer hospitals children’s wing and for the Akshay Patra Foundation, with a show in London. Anamika Khanna was one of the three designers who presented their collections in Khadi at the fashion show held by Fashion Design Council of India (FDCI) in coordination with Gujarat State Khadi and Village Industries for Narendra Modi’s made in India project. She is among the first Indian fashion designers to present their collections in Pakistan as part of the Bridal Asia event. She collaborated with the brand Bvlgari to launch them in New Delhi and did a private event with them in Singapore.
Document 5: Amaal Mallik: Amaal Mallik is a music composer and playback singer in the Hindi film industry hailing from a musical family. He is the grandson of Sardar Malik; son of Daboo Malik and Jyothi Malik; brother of singer Armaan Malik and nephew of music composer and singer Anu Malik. Mallik started learning music at the age of 8 and took a liking towards the piano. He debuted in 2014 by composing 3 songs for Salman Khan's "Jai Ho", following it up with the song "Naina" from "Khoobsurat".
Document 6: A. R. Rahman: Allah-Rakha Rahman (   , born A. S. Dileep Kumar), is an Indian composer, singer-songwriter, music producer, musician and philanthropist. A. R. Rahman's works are noted for integrating Indian classical music with electronic music, world music and traditional orchestral arrangements. Among his awards are two Academy Awards, two Grammy Awards, a BAFTA Award, a Golden Globe, four National Film Awards, fifteen Filmfare Awards and sixteen Filmfare Awards South. He has been awarded the Padma Bhushan, the third highest civilian award, in 2010 by the Government of India.
Document 7: Abdul Latif Khan: Abdul Latif Khan is an Indian classical musician and instrumentalist, known for his proficiency in Sarangi, a stringed Hindustani classical music instrument. He was born in a family of musicians in Gwalior in the Indian state of Madhya Pradesh, learned music under the tutelage of Haider Khan, his grandfather, Chote Khan, his father, Chhote Khan and Uday Khan and Haddu Khan, his uncles, in Khyal Gharana style and mastered the instruments such as Sitar, Santoor and Tabla Later, he learned Sarangi under Bade Ghulam Sabir Khan.
Document 8: Barkha Sharma: Barkha Sharma is an Indian fashion designer. She curates the men’s line labeled “Barkha ‘n’ Sonzal” along with her sister. In 2010, the duo styled santoor Maestros Pandit Shivkumar Sharma and Rahul Sharma for the patriotic song Mile Sur Mera Tumhara.
Document 9: Smitha Madhav: Smitha Madhav is an accomplished and performing Carnatic Classical Singer and Bharatanatyam Dancer. Carnatic music is a system of music commonly associated with the southern part of India and one of the two main classifications of Indian Classical Music (the other being Hindustani Classical Music). Smitha is an eminent and versatile artist in both forms of these fine arts.
Document 10: Ram Narayan: Ram Narayan (Hindi: राम नारायण ; IAST: Rām Nārāyaṇ , ] ; born 25 December 1927), often referred to with the title Pandit, is an Indian musician who popularised the bowed instrument sarangi as a solo concert instrument in Hindustani classical music and became the first internationally successful sarangi player.
Document 11: Rahul Sharma (musician): Rahul Sharma (born 25 September 1972) is an Indian classical musician of Hindustani classical music. He plays santoor and is also a vocalist.
Document 12: Shruti Merchant: Shruti Merchant is an Indian choreographer. She is the younger sister of Vaibhavi Merchant. She is the granddaughter of late Shri B.Hiralal, one of the four Lal brothers namely B.Sohanlal, B.Hiralal, B.Chinni Lal and B.Radheshyam. He was a renowned film choreographer and was one of the founding fathers of classic Bollywood cinema songs. He brought the strong, vehement Jaipur style of dance to Indian cinema and rightfully commanded respect for several decades in the Indian film industry. Shruti is trained in Indian classical dance, Kathak and Bharatnatyam.
Document 13: Gorakh Sharma: Gorakh Sharma is an Indian guitarist who is well known for his work in the Indian film industry and who is also one of the first bass guitarists in the industry. He is the younger brother of Pyarelal Sharma of the famed music duo Laxmikant Pyarelal. During his entire music career that spanned from 1960 to 2002 he has played various string instruments in more than a 1000 songs and over 500 films.
Document 14: Santoor: The santoor is a trapezoid-shaped hammered dulcimer or string musical instrument made of walnut, with seventy-two strings. It is the national musical instrument of Iran, and is also native to Jammu and Kashmir. It dates back to ancient times, and was called "Shatha Tantri Veena" in ancient Sanskrit texts. A primitive ancestor of this type of instrument was used in Mesopotamia (1600-911 BC) and Babylonia.
Document 15: Sumedha Karmahe: Sumedha Karmahe is an Indian vocalist and performing artist, well known for her scintillating voice and versatile singing. She has performed in different television shows like Sa Re Ga Ma Pa Challenge 2007, Ek Se Badhkar Ek, Dulhan, Maayeka, Ranbir Rano, Saregamapa 2009, Saregamapa Mega Challenge on Zee TV, IPL Rockstars on Colors, The Jam Room on Sony Mix. Her first released playback was in a Santosh Sivan film named Tahaan. She has done playbacks in 5 different languages. Till date she has 3 singles - Bawre Nain, Yaadein, Darmiyaan to her credit. Recently she has given her voice for songs like Toota Jo kabhi Taara along with Atif Aslam for the movie A Flying Jatt, Tum Tum Tum Ho along with Arijit Singh for the movie Fuddu.
ground_truth: Rahul Sharma