Lal Patthar is a 1971 Hindi-language Drama Family movie written by Prasanta Chowdhary, Vrajendra Gaur and Nabendu Ghosh. The movie is directed by Sushil Majumdar and produced by F. C. Mehra. Raja Kumar Bahadur alias Gyan Shankar Rai has been a total abstainer all his life, never touching a drop of alcohol.. Lal patthar stars Raaj Kumar, Hema Malini, Raakhee, Vinod Mehra, Raaj Kumar Pandit, Rakhee Gulzar and Sanjana. The music was composed by Shankar Jaikishan. Cinematography was done by Dwarka Divecha and editing by Pran Mehra. The film has a running time of 2-28 min. It was released on 31st December 1971.