Question: What film did one of the co-stars of  Saajan Ka Ghar receive a National Film Award in 1970 for?

<P0-S0> Rishi Kapoor (born 4 September 1952) is an Indian film actor, producer and director known for his works in Hindi cinema. <P0-S1>  He received the National Film Award for his debut role as a child artist in his father Raj Kapoor's 1970 film "Mera Naam Joker" (1970). <P0-S2>  Kapoor had his first lead role as an adult opposite Dimple Kapadia in 1973 with the film "Bobby" and received the Filmfare Best Actor Award in 1974. <P0-S3>  "Bobby"' s worldwide success launched him as a global movie star, domestically in India and overseas in the Soviet Union. <SEP> <P1-S0> Saajan Ka Ghar is a 1994 Indian Bollywood film directed by Surendra Kumar Bohra. <P1-S1>  It stars Juhi Chawla and Rishi Kapoor in pivotal roles. <SEP> <P2-S0> Indian actress Tabu, also credited as Tabbu, has appeared in Hindi, Telugu, English, Tamil, Malayalam and Bengali films. <P2-S1>  Tabu's first credited role came as a teenager in Dev Anand's "Hum Naujawan" (1985), and her first major role was in the Telugu film "Coolie No. 1" (1991). <P2-S2>  In 1994, she starred in two Hindi filmsthe romance "Pehla Pehla Pyar" and the action drama "Vijaypath"and received the Filmfare Award for Best Female Debut for the latter. <P2-S3>  After appearing in a series of poorly received films, including "Prem" and "Saajan Ki Baahon Mein" (both 1995), the year 1996 was key for Tabu. <P2-S4>  Her performance as a young woman affected by the Punjab insurgency in Gulzar's "Maachis" (1996) proved to be a breakthrough for her, and won her the National Film Award for Best Actress. <P2-S5>  Also that year, Tabu won the Filmfare Award for Best Actress – Telugu for the romance "Ninne Pelladata", and featured alongside Govinda and Karisma Kapoor in the commercially successful comedy film "Saajan Chale Sasural". <SEP> <P3-S0> Vikram is an Indian Tamil film actor. <P3-S1>  After making his cinematic debut in the 1990 film "En Kadhal Kanmani", he acted in a series of small-budget Tamil, Telugu and Malayalam films. <P3-S2>  It was Bala's tragedy film "Sethu" (1999) that established Vikram in the Tamil film industry. <P3-S3>  In the early 2000s Vikram appeared in a series of masala films—"Dhill", "Gemini", "Dhool" and "Saamy" all becoming commercially successful. <P3-S4>  During this period, Vikram performed diverse roles and received critical acclaim for his performances in "Kasi" and "Samurai". <P3-S5>  In 2003, Vikram's performance as an autistic gravedigger in "Pithamagan" won a lot of acclaim and secured his first National Film Award for Best Actor. <P3-S6>  His portrayal as an innocent man with multiple personality disorder in Shankar's "Anniyan" was commercially successful. <P3-S7>  The film also fetched him a Filmfare Best Actor Award. <P3-S8>  Vikram's portrayal as a tribal leader in Mani Ratnam's "Raavanan" saw him secure further acclaim. <P3-S9>  He is only the third actor to receive a National Film Award for Best Actor in the Tamil film industry. <P3-S10>  Vikram is known for his intense performances, with his work often fetching critical acclaim and commercial success. <P3-S11>  He has won a National Film Award and seven Filmfare Awards South, of which five are Best Actor awards.