Grandfather to Bollywood director Siddharth Malhotra.
Prem Nath wrote the books. Shradhanjali, Tears Of The Heart (Dil Ke Aansoo) and Himalaya Ki Aag.
Younger brother is producer Ravi Malhotra (father of director Karan Malhotra).Ravi was also secretary of Dimple Kapadia. Ravi's other son Rakesh Malhotra is married to actor actor Jagdish Raj's daughter Roopa. Roopa is also the sister of Anita Raaj.
Grandson Adiraj Malhotra is a aspiring actor. He is the son of Monty Nath. As a child, Adiraj appeared in his father's video film "Purana Andaz".
Starred in the shelved movie S.P. International's Pyar Mein Sauda Nahin "(1976). Starring Prem Nath, Prem Krishen, Tamanna, Farida Jalal, Reeta Bhaduri,Paintal, Music by Bappi Lahiri, Produced by Anuj Kumar , Directed by Ashok Maan.