I didn't get my due salaries

I worked for a IT company for almost over 6 months and got my 3 months salary (that was also not on time). Now from last more than 4 months, I am asking for my pending salaries that the employer always promised me to pay in 2 days, this week, that day and all and never paid me. Once he paid a cheque that he also stopped and he said that may be signs were not right and didn't issued another cheque for it. I never mailed him regarding my salary clearance coz we had some good personal boundings. He also asked me that the company is facing crucial time so get me a project so I can pay you the amount. I worked by going outside my profile and bring the project but he didn't paid me again. Now I didn't gave any resignation or notice period to him and left the company to join another one to earn something for my living. I'm still asking him for my pending dues but he always said that I will pay you today, tomorrow, after tomorrow but didn't pay anything yet. What should I do. Please suggest