Call from fake person claiming to send money for hospital fees

suddenly I received a call from this number and started speaking with me like as if I know the person very well and he also knows me very well. you also said that for a long time we had no talking relation, then he said that someone is admitted in the bypass Apollo Hospital. It was a strange thing that I noticed that the person knows about my father's heart operation and he started talking about the heart operation of my father how it was done and where it was done. Then he claimed that his patient has also a heart operation In The Apollo Hospital near bypass and he has already paid the amount through his phone pay and a 25000 amount which was till to be paid to the hospital he said he was standing in the counter and has send me rupees 10 and 25000 to my account and ask me to send the 25000 to a specified phone number given by him. Suddenly I realised that the message was from his phone number like a text message not from the bank and the account number was all in cross the last four digit was not showing.