Can I file case against Team manager

Sir Please tell me, one pvt ltd Telecom service provider company has send me a offer letter via mail and i have given confirmation via mail. And submitted my original certificates to the company. But company has not given any joining letter, and i have also not done any agreement or paper works, only the company has taken all of my proofs, the company has located me at kerala for Rf survey and given me a FARM TOCLI training of 10000 rs ,and this training is included of 1day theoretical and 1day practical class ,after classes their is theory exams for candidates but company has not conduct the theoretical exam .after training I have left the company due to mental harassment, because the Kerala police has taken me in his custody with my team coordinator due to public awareness of rf survey they thought we are terrorists and we are planning for bomb blast ,but company is not giving my documents backs. He was demanding 12000 for training and his processing charge on hiring ,sir tell me what I Will do.