9 Hindi Films featuring Sridevi with Jaya Prada: Sisters on screen, Frenemies off screen: The Listicle

Sridevi and Jaya Prada appeared in nine Hindi films together; 

1. Farishtay, released on February 22, 1991
2. Mein Tera Dushman, released on 3 February 1989
3. Majaal, released on 24 April 1987
4. Aulad, released on 17 April 1987 
5. Aakhree Rasta. released on 6 June 1986
6. Naya Kadam, released on 5 October 1984 
7. Maqsad, released on 4 May 1984
8. Tohfa, released on 3 February 1984
9. Mawaali, released on  4 November 1983

In Telugu, they appeared in four films;

1. Adavi Simhalu (1983)
2. Mundadugu (1983) Remade as Maqsad (1984) in Hindi
3. Krishnarjunulu  (1982)
4. Devatha (1981)  Remade as Tohfa (1984) in Hindi

As far as we know--so far--this is the official list of all the film famed rivals Jaya Prada and Sridevi appeared in.