Complaint against cbse school

A cbse school have appointment me for the session 2025-26.They have done a bond in school and taken my original documents.I also fill their staff details forms and they added me to their wts up group.But as school stared on June 16 they didn't call me for school though I have called them when to come. I visited school but their co ordinator didn't allowed me to visit principal mam and said me I will call you next week to join.But they didn't.I called them but don't get response.sonInvisated the school and meet principal,ahe said we don't have students and don't want you and tear the contract infront of me and asked to to go and do whatever I want to do.I told her u should have told me earlier now I don't have any job and there is no school vacancy now.plz giud me in this regard how I can go legally