Star Data Services — Forcing of money

I am a 2nd year student and they are forcing me to pay. I have already paid 3500 their admin charges and now again they're asking for it. It's scary now the situation as they're saying see you in court and all. As they have already said about fir and telling me to be in court and also tell the Institute I study. Please help me as I don't want my future to be spoiled by them.
I am attaching the payment ss as well as what the legal team told me.