Chhoti Si Baat（1976）

Arun is a shy accountant in Bombay who dreams of romancing Prabh, but never gets past following her around without managing to actually speak up. While Arun twiddles his thumbs, suave Nagesh steps into the picture and turns on the heat, prompting Arun to take "love coaching" from "romance specialist" Julius Nagendranath to win Prabha back.