Fraud of education training institute

You can file Consumer case under Consumer Protection Act.  Immediately file a police complaint in the local P.S. for abusive language and threatening, cheating, physical and mental harassment etc.  Normally the training Institute people will be influential and will be mingled with the police. If you do not any response from the police, meet the higher officials i.e. Commissioner of Police or S.P. as the case may be.  They will help you.  

if you are convinced it is deficiency of service then concumer court

if you are convinced that it is fraud then go to thana.