the act of subjecting someone to hostile and ill-treatment

oppressive treatment

दबाव से भरा इलाज

English Usage: He claimed to suffer from persecution mania, believing everyone was against him.

Hindi Usage: उसने कहा कि वह पीड़न मनिया से ग्रस्त है, यह मानते हुए कि सभी उसके खिलाफ हैं।