Yes Boss (1997) on Netflix

Sidharth Chaudhry is a businessman, and he runs an advertising agency, through which he gets to meet a lot of beautiful women. Although he has been married to Sheela for years, he often has affairs with other women behind her back. And the employee who arranges all his appointments, inside and outside the office, is Rahul, who wants to get rich, very quickly, and start his own business. Sidharth meets lovely Seema Kapoor, and soon both fall in love. Rahul is asked to make all dates with Seema, and ensure that everything goes smoothly. When Seema finds out that Sidharth is already married, he assures her that his marriage is almost over, and he is in the process of getting a divorce. Rahul first feels sorry for Seema, as he knows that Sidharth is manipulating her, and then begins to fall to fall in love with her, but he knows that Seema wants to get rich soon, and if she doesn't then she will get married to a very wealthy man, like Sidharth, even if he is already married, and will have nothing to do with a struggling assistant like himself.