Someone who flatters or ingratiates themselves with someone in power.

चापलूस

English Usage: "He’s such a brownnoser, always praising the boss."

Hindi Usage: "वह इतना चापलूस है, हमेशा बॉस की तारीफ करता है."

To flatter someone to gain favor or advantage.

चापलूसी करना

English Usage: "She is always brownnosing her way to promotions."

Hindi Usage: "वह हमेशा पदोन्नतियों के लिए चापलूसी करती है."