• Employer is not giving my certificates

i worked as medical transcriptionist for 1 year. the Transdyne company took my 10th, inter, degree original certificates. that job was very stressful. lot of stress to eyes. so i quit the job. i cant work such a stressful job which was affecting my health. i used to work for 10 to 12 hours for only Rs.7000/-. In Hyderabad rented auto drivers are earning Rs.12,000 per month. i was working for US doctors. i have to transcribe what they dictate online. The company was getting about Rs. 80,000/ from my work. They are cheating people by giving advertisements in newspapers that they will pay Rs.16,000/month. i have that newspaper ad with me. how can i get back my certificates and take action against them for cheating people with such ads and earning huge profits by paying such a low wages. They stopped one month salary also.