Question: What year was S. Aishwarya's grandmother born in?

full_context: Document 1: M. G. Venkata Raghavan: Mysore Govinda Rao Venkata Raghavan (born 14 May 1956) is an Indian Carnatic vocalist, playback singer, composer and actor. He was awarded the Rajyotsava Prashasti, the highhest civilian honour of the state of Karnataka, for his contribution towards Carnatic music.
Document 2: 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 3: Radha Viswanathan: Radha Viswanathan (born 1934) is an Indian vocalist and former classical dancer. She has performed extensively with her mother, Bharat Ratna Carnatic vocalist M. S. Subbulakshmi.
Document 4: Nithyasree Mahadevan: Nithyasree Mahadevan (born 25 August 1973), also referred to as S. Nithyashri, is an eminent Carnatic musician and playback singer for film songs in many Indian languages. Nithyashree has performed in all major sabhas in India and has presented her concerts in many destinations around the world. She has received multiple awards and honours, and has released more than 500 albums.
Document 5: Kavita Krishnamurthy: Kavita Krishnamurthy is an Indian film playback singer. Trained in classical music, she has sung a wide range of classical-based songs. In her career, she has worked with a variety of music composers, including Laxmikant–Pyarelal, R. D. Burman, Hamsalekha and A. R. Rahman. She is also the recipient of four Filmfare Best Female Playback Singer Awards, including three consecutive awards in the period 1994–1996, and the Padmashri which she received in 2005. In 1999, she married violinist L. Subramaniam.
Document 6: Kanaka Srinivasan: Kanaka Srinivasan is an Indian classical dancer and one of the leading exponents of the classical dance form of Bharat Natyam. She is a disciple of Vazhuvoor B. Ramaiyah Pillai and is aligned with Vazhuvur tradition of the dance form. She is a recipient of the Sangeet Natak Akademi Award of 1998. The Government of India awarded her the fourth highest civilian honour of the Padma Shri, in 2006, for her contributions to Indian classical dance.
Document 7: Sithara (singer): Sithara Krishnakumar (born 1 July 1986) is an Indian singer. Popularly known by her first name, Sithara is a playback singer in Malayalam who has also recorded songs for a number of Tamil, Telugu and Kannada films. Trained in Hindustani and Carnatic classical music traditions, she is also a recognised ghazal singer. She travels extensively in India and abroad and has performed at more than a hundred stage shows. Folk and fusion being her other areas of interest, she has collaborated with various popular musical bands in Kerala. She launched her musical band Eastraga which focuses on a mix of female oriented songs backed by a team of renowned musicians like Rison, Sushanth, Abhijith Sreenivasan, Paulson, Thanuj, Jitu Oommen Thomas and Sarfaraz Khan.
Document 8: P. Susheela: Pulapaka Susheela, commonly known as P. Susheela, is an Indian playback singer associated with the South Indian cinema for over six decades. She has been recognized by both the "Guinness Book of World Records" and the "Asia Book of Records" for singing most number of songs in Indian languages. She is also the recipient of five National Film Award for Best Female Playback Singer and numerous state awards. Susheela is widely acclaimed as a singer who defined feminism in South Indian Cinema and is well known for her mellifluous vocal performances for over 40,000 film songs across South Indian languages.
Document 9: S. Aishwarya: S.Aishwarya born on 27 October in Chennai, Tamil Nadu) is an Indian singer of traditional Carnatic music. She is the great-granddaughter of M.S. Subbulakshmi. and the grand daughter of Radha Viswanathan
Document 10: Shreya Ghoshal: Shreya Ghoshal (born 12 March 1984) is an Indian playback singer. She has received four National Film Awards, six Filmfare Awards including five for Best Female Playback Singer, nine Filmfare Awards South for Best Female Playback Singer (two for Tamil, four for Malayalam, two for Kannada and one for Telugu), two Tamil Nadu State Film Awards and three Kerala State Film Awards. She has recorded songs for film music and albums in various Indian languages and has established herself as a leading playback singer of Indian cinema.
Document 11: Aishwarya Majmudar: Aishwarya Majmudaar (Gujarati: ઐશ્વર્યા મજમુદાર ; born 5 October 1993) is a singer from Ahmedabad, Gujarat, India. She gained popularity after winning the 2007-2008 musical reality show "STAR Voice of India - Chhote Ustad" at the age of 15. She was highly praised for her performances by the judges throughout the show won the competition with Anwesha Datta Gupta. She also took part in "Music Ka Maha Muqabala" in Himesh Reshamiya's "Himesh's Warriors" team. She has sung several songs for Gujarati and Hindi films. She was also seen in "Antakshari – The Great Challenge".
Document 12: Saraswati Rane: Saraswati Rane (October 4, 1913 - October 10, 2006) was an Indian classical singer in the Hindustani Classical genre. She was a daughter of Ustad Abdul Karim Khan (1872–1937), the founder of Kirana Gharana. Her family had a long and great music tradition. She got her initial training of vocal music of the Kirana Gharana style from her elder brother Sureshbabu Mane and elder sister Hirabai Barodekar, who themselves were the doyen of Indian classical music of their times. Later she also sang along with elder sister, Hirabai Bododekar, especially in "jugalbandi" style.
Document 13: Lata Mangeshkar: Lata Mangeshkar (   ) (born 28 September 1929) is an Indian playback singer and occasional music composer. She is one of the best-known and most respected playback singers in India. Mangeshkar's career started in 1942 and has spanned over seven decades. She has recorded songs for over a thousand Hindi films and has sung songs in over thirty-six regional Indian languages and foreign languages, though primarily in Marathi and Hindi. She is the recipient of three National Film Awards, 12 Bengal Film Journalists' Association Awards, four Filmfare Best Female Playback Awards and many more. The Dadasaheb Phalke Award was bestowed on her in 1989 by the Government of India. She is also the second vocalist, after M. S. Subbulakshmi, to have ever been awarded the Bharat Ratna in 2001, India's highest civilian honour. She has four siblings—Asha Bhosle, Hridaynath Mangeshkar, Usha Mangeshkar and Meena Mangeshkar—of which she is the eldest.
Document 14: Aniruddha Knight: Aniruddha Knight (November 13, 1980) is an artist of South Asian classical dance and music known as Bharatanatyam. He is a 9th-generation descendant of a 200-year-old family of dancers and musicians from southern India. The dances are traditionally performed by women - Knight is unusually the first male of his family to take up this style of dance. His grandmother Balasaraswati was a celebrated and prolific dancer, "Newsweek" said she has been "recognized as the greatest Indian dancer of all time".
Document 15: Subbalakshmi: Subbalakshmi is an Indian actress in Malayalam movies. She is one of the prominent supporting actresses currently handling grand mother roles in Malayalam movies. She is noted for her performance in "Kalyanaraman" (2002), "Pandippada" (2005) and "Nandanam" (2002). Her daughter Thara Kalyan is also an actress in Malayalam movies.
ground_truth: 1934