Got 15k scammed

I’m 22F. This morning around 10:30, my sister got a message from her senior asking for ₹15,000. Since he’s a well-known person, she trusted him and sent the money. Later, she received another text asking for more money, which made her suspicious. She called him directly, only to find out that his account had been hacked and random messages were being sent to his contacts. My sister immediately contacted cyber security and filed a complaint. Is there any chance we’ll get the money back? Is there anything else we should do?