Aap Ki Khatir (1977)

Bombay-based wealthy Sagar leaves his disapproving father to get married to middle-classed Sarita, rents a flat, and drives a taxi for a living. Sarita longs to be rich, borrows ten thousand Rupees from a moneylender, Hazarimal, to invest in shares. Her hopes to make quick and easy money turn out to be in vain when the stock market crashes.