Prema Mandiram
Prema Mandiram (English:
Love Temple) is a 1981 Telugu, drama film, produced by D. Ramanaidu under the Suresh Productions banner and directed by Dasari Narayana Rao.
It stars Akkineni Nageswara Rao, Jaya Prada in the lead roles and music composed by K. V. Mahadevan.
Abe Meyer
Abe Meyer( 1901 – 1969) was an American composer of film scores.
Alonso Mudarra
Alonso Mudarra( c. 1510 – April 1, 1580) was a Spanish composer of the Renaissance, and also played the vihuela, a guitar- shaped string instrument.
He was an innovative composer of instrumental music as well as songs, and was the composer of the earliest surviving music for the guitar.
Tarcisio Fusco
Tarcisio Fusco was an Italian composer of film scores.
He was the brother of the composer Giovanni Fusco and the uncle of operatic soprano Cecilia Fusco.
Walter Ulfig
Walter Ulfig was a German composer of film scores.
Bert Grund
Bert Grund( 1920–1992) was a German composer of film scores.
Theodred II (Bishop of Elmham)
Theodred II was a medieval Bishop of Elmham.
The date of Theodred's consecration unknown, but the date of his death was sometime between 995 and 997.
Henri Verdun
Henri Verdun( 1895–1977) was a French composer of film scores.
Thomas Morse
Thomas Morse( born June 30, 1968) is an American composer of film and concert music.
K. V. Mahadevan
Krishnankoil Venkadachalam Mahadevan (14 March 1918 – 21 June 2001) was an Indian composer, singer-songwriter, music producer, and musician known for his works in Tamil cinema, Telugu cinema, Kannada cinema, and Malayalam cinema.
He is best known for his contributions in works such as "Manchi Manasulu" (1962), "Lava Kusa" (1963), "Thiruvilaiyadal" (1965), "Saraswathi Sabatham" (1966), "Kandan Karunai" (1967), "Thillana Mohanambal" (1968), "Adimai Penn" (1969), "Balaraju Katha" (1970), "Athiparasakthi" (1971), "Sankarabharanam" (1979), "Saptapadi" (1981), "Sirivennela" (1986), "Sruthilayalu" (1987), "Pelli Pustakam" (1991), and "Swathi Kiranam" (1992).
A contemporary of M. S. Viswanathan and T. K. Ramamoorthy, starting his career in the 1942 with "Manonmani"
, Mahadevan scored music for over six hundred feature films, spanning four decades, and has garnered two National Film Awards, the Tamil Nadu State Film Award for Best Music Director, three Nandi Awards for Best Music Director, and the Filmfare Best Music Director Award
(Telugu).
He was also conferred the title of Thirai Isai Thilagam (Pride of Cine Music Directors) in Tamil cinema.

Question: When did the composer of film Prema Mandiram die?
Answer: 21 June 2001