Cheaters - Analyst Technowave Employee Review

During interview they asked me what was my ctc of my previous conpany. I said I was in probation there and had around 30k as my ctc. They told me that they will provide 30k and send me offer letter. Once I joined they reviewed my payslip and said during probation I didn't had 30k in my last company. So they are not willing to give me that much. Also my previous company had branches in in Bangalore and in the payslip the adress is given as Bangalore, but location is given as cochin. But they are arguing that I worked in Bangalore and they won't give pay I had there. More over they wanted me to work for 15k.