K. N. Singh and Raj Khosla have appeared together in 12 films between 1952 and 1982, with a combined box office of ₹7 crore. Every shared film with year, roles and gross, plus who else each works with most.
| Year | Film | Box office |
|---|---|---|
| 1952 | Jaal | |
| 1955 | C.I.D. | |
| 1955 | Milap | |
| 1956 | C.I.D. | ₹2.5 crore |
| 1964 | Woh Kaun Thi? | |
| 1965 | C.I.D. | |
| 1966 | Mera Saaya | ₹4.5 crore |
| 1969 | Chirag | |
| 1973 | Kuchhe Dhaage | |
| 1974 | Prem Kahani | |
| 1980 | Dostana | |
| 1982 | Teri Maang Sitaron Se Bhar Doon |
K. N. Singh also often with: Dev Anand (13), Helen (13), Johnny Walker (12), Tun Tun (10), Jagdish Raj (8)
Raj Khosla also often with: Dev Anand (9), Johnny Walker (7), Birbal (6), Jagdish Raj (6), Mukri (6)