Kasam Dhande Ki (1990)

Con-man Satyaprakash hires naive Bholashankar ostensibly to protect vulnerable Juhu Beach shop-keepers from extortionist Balan and his goons, but soon uses the the former to extort monies from them, thus incurring the wrath of the later. In order to make peace with Balan, he apologizes but Bholashankar gets badly injured and is hospitalized. After recuperating, he will be in for more trauma and shock after he finds that his sister, Lajjo, has been sold by Satyaprakash to Balan for One Lakh Rupees.