Mahendran and Ilaiyaraaja.

12 films with both credited.

Year	Film	Mahendran	Ilaiyaraaja	Language
1978	Mullum Malarum	Director, Writer	Music Director	Tamil
1979	Pagalil Oru Iravu	Writer	Music Director	Tamil
1979	Uthiripookkal	Director, Writer	Music Director	Tamil
1980	Johnny	Director, Writer	Music Director	Tamil
1980	Kaali	Writer	Music Director	Tamil
1980	Nenjathai Killathe	Director, Writer	Music Director	Tamil
1980	Poottaatha Poottukkal	Director	Music Director	Tamil
1981	Nandu	Director, Writer	Music Director	Tamil
1982	Metti	Director, Writer	Music Director	Tamil
1984	Kai Kodukkum Kai	Director, Writer	Music Director	Tamil
1986	Kannukku Mai Ezhuthu	Director	Music Director	Tamil
2004	Kamaraj	Actor	Music Director	Tamil