Buildon - Salary reimbursements not being provided by the past employer from the last 6 months

I was working with buildon company in pune into sales & marketing division. It's a mumbai based company & deals into gypsum products. I started working there from **.**.**** & resigned via mail on **.**.****. Actually i was about to continue my work but they were not paying my salary from the last * months & reimbursements expenses from the last * months. I constantly kept on following with Mr. Rajesh Singh in buildon who has taken my interview in mumbai for pune location. Now also i am following them for my F&F reimbursements but they are not picking up my call & he is also blocked my no. Kindly help me back in getting back all my F&F amount from the company or kindly suggest what action should i take further.Salary + reimbursements pending amounting more than a lakh rupees to recover kindly help me or suggest some ideas & actions so that i can move ahead